Rolling Art: Jaguar XKSS "Continuation" Video (Jay Leno)

Above: Ecurie Ecosse Jaguar D-Type Short Nose; Below: Jaguar D-Type chassis (model)

Jaguar D-Type central (aluminum) monocoque and front (tubular steel) subframe.

Here's a link to the Jay Leno video on the new "continuation" Jaguar XKSS:

http://www.nbc.com/jay-lenos-garage/video/the-new-jaguar-xkss/3428768

Return with me, now, to those thrilling days of yesteryear...

For much of its history, LeMans was a unique race.  The rules were written by the Automobile Club de l'Ouest (and still are).  Sometimes they accommodated cars built for the FIA's sports car championship, sometimes not.  After World War Two, the LeMans circuit was a special case too: smooth and flat with long straights and (mostly) tight corners.  Jaguar's solid rear axle worked perfectly fine there.  At longer, bumpier, circuits,  Jags were less competitive.

Doubtless because of Bentley's success at LeMans in the years around 1930, British sports car manufacturers were always more interested in LeMans than the FIA championship.  Before racing sports cars had bullet-proof reliability, the drama of a "last man standing" win in a 24-hour race gave British sports car manufacturers something to crow about when they (often) lacked the outright pace of continental race cars.

One reason I love postwar racing sports cars is that they were "freestyle," and so different from each other.  Ferrari (and Maserati) attacked LeMans with powah: 4 to 5 liter engines.  The Mercedes 300 SLR attacked it with technical sophistication and reliability.  Jaguar (and Aston Martin) attacked it with what they had in the parts bins for their road-going sports cars.

When the LeMans-winning C-Type became long in the tooth, Jaguar decided to put its proven (but underpowered) 6-cylinder engine into a radical new car: the D-Type.  The car's advantage would be light weight, a low-drag body, and improved disc brakes.  Malcolm Sayer, the designer, had a background in aircraft.

Sayer insisted on minimal frontal area and used an aircraft-style aluminum monocoque body/chassis center "tub"--an automotive first.  Tubular steel subframes hung from its front and rear to support the engine and suspension.  While this was no more rigid than the 300 SLR's fully-triangulated tubular space frame, it produced a lighter car.  The D-Type was both lighter and more rigid than Ferrari's twin-tube ladder frame.  Working with Jaguar, Dunlop developed a new (improved) brake/hub/wheel package that eliminated the brake fade of Mercedes and Ferrari drums while saving weight compared to the wire wheels customarily used.

The D-Type won LeMans in '55, '56, and '57.  Boom!  In fairness, it must be said that Mercedes probably would have won in '55 had it not withdrawn its team after the terrible accident: the 300 SLR swept the board except for LeMans.  When Jaguar decided to withdraw factory-entered cars from competition at the end of 1956, it had surplus chassis lying about.  What to do?  The XKSS.

Rant Re-Run (Driverless Cars)

State Senate President Cullerton of Illinois has introduced a Bill to tax drivers by milage driven.  He says this will help solve a problem--that the gas tax no longer adequately funds road maintenance in the State.  Cullerton blamed Toyota Priuses for the problem, which is just silly.  For one thing, the price of gas currently is half of its all-time high (so the tax take is half what it could be).  For another, I have not noticed Priuses selling like hotcakes over the past decade.  Full-sized pickup trucks, SUV's, and SUV crossovers are selling like hotcakes.

Cullerton's proposal would require more Nanny State (monitoring the location and use of vehicles), or a complex "apply for it" rebate system (to refund gas tax to drivers), or some (possibly less privacy-invading) combination of both.  This alone makes me confident that his idea will be a non-starter with voters.

But Cullerton raises some thought-provoking points.  Until now, point-of-sale fuel taxes have functioned well as user-fees for road construction and maintenance.  The more you drive, the more you pay.  As vehicles become more fuel-efficient, and as more alternative fuel and electric vehicles enter the fleet, fuel taxes become harder to collect, or avoidable.  The "automatic" revenue feature of user-fees dwindles while the need for road maintenance remains constant (or increases).  Something must be done to maintain the road budgets of the States.  And the Feds (also based on fuel taxes).

Of course enthusiast drivers resent the Nanny State.  We like to drive fast and sometimes aggressively.  We like to drive alertly, with situational awareness, and we decry those who don't.  If we're driving a late model car, vehicle dynamics are already monitored by continuous-loop data acquisition.  It's tamper-proof and admissible in court as evidence.  You can argue your own attentiveness and competence all day long in an accident case, but it will be an uphill battle against data that shows speed and g-forces.  I know an aggressive driver who runs his own dash camera continuously.  That way, he can at least introduce his data into evidence.  He's fighting fire with fire.

Insurance companies tout "apps" that allow parents to monitor use of a vehicle by their teenaged children.  Car companies tout "smart" cruise control that maintains distance, and automatic braking that "pays attention when you don't."  It's but one step from the current "lane drift alert" feature in some cars to a system that takes control from the driver.  And we're only a few lines of code, and some road re-striping, away from "intelligent" freeway merging and turn lanes.  How hard would it be to integrate Google Map smart phone technology with this?  You could program your destination into your car, and it would drive itself to your next destination.

For two years, I took the express commuter train from the far southwest suburbs into the Chicago Loop.  Compared to the aggravation of rush hour on the Stevenson Expressway, it was heaven.  The travel time was about equal.  I could read, or chat with a fellow passenger (noting his facial expressions &c.), or just look out the window and "decompress."  Many of my fellow riders used the time "productively" on their laptops.  If this flexibility were introduced into personal vehicles, you could arrive home with your work emails answered and your Facebook interactions updated.  Who wouldn't want that?

People are ping-able on their smart phones.  Some "check in" on Facebook regularly.  The social media culture is, often, an accusatory and shaming culture.  I am morally certain (can't prove it) that one of my own speed busts was caused by an Upright Citizen who used his cell phone to "drop a dime" on me.  Where is the evidence that average drivers, given the option of a Smart Taxi, would resent the Nanny State tracking their every move?

FuguZ

This car pushes my buttons.  A Nissan Skyline engine is the perfect transplant.  Yes, it's too loud, and a bit too spartan, the body kit is a bit too aggressive, and white would not have been my personal first choice of color.  But it's a track day car, and it's not my car.  It's hard to quibble with a car "done to taste" when that taste is so close to your own.  Brilliant effort!  Here's the Leno's Garage video:

http://www.nbc.com/jay-lenos-garage/video/1973-datsun-240z/3001553

Purdy Car, Purdy Picture

Dan Gurney, with his Eagle in 2002, in Burneville, reprising his 1967 Belgian GP win at Spa-Francorchamps.
"There was a big bump in the apex up there that unsettled the car."

Join Me In The Wayback Machine (Jaguar XK-E)

It's hard to overstate the impact that the Jaguar XK-E made on sports car buffs when it was introduced in 1961.  This is from its Wikipedia page:

At a time when most cars had drum brakes, live rear axles, and mediocre performance, the E-Type sprang on the scene with 150 mph and a sub-7 second 0-60 time, monocoque construction, disc brakes, rack and pinion steering, independent front and rear suspension, and unrivaled looks.^[3]


Starting with the XK-120 in 1948, Jaguar had a reputation of value for money.  But Jags got heavier and more refined (and less track-worthy) in the 1950's.  And Jag went from cutting-edge technology to also-ran.  Little did the public know that, when the factory LeMans effort was shut down, William Lyons green-lighted a study of turning the D-Type into a road car.  The engineers figured out how to do the D-Type's aluminum monocoque in steel, and it was a rigid chassis for the times.

Which brings us to value for money.  These figures are from memory, and thus unreliable in preciseness.  But I'm fairly confident of my orders-of-magnitude.  The XK-E sold for about $6000 in 1961.  A Ferrari 250 GT cost twice that; the 250 GT SWB even more.  An MGA cost about $2500 (the MGB was two years away).  This was a bit more than a basic Chevy or Ford.  A Fiat 1500 roadster was about $3000.  An Alfa Giulietta was a bit over $4000.  Porsche 356's ranged from $4500 to $5000 (the 911 was 3 years away, and would cost as much or more as an XK-E when it arrived).

The Chevy Corvette, perhaps the XK-E's closest competitor, started north of $3500.  But by the time you checked the boxes to get the good stuff, it was over $5000.  And for 85% of the cost of an XK-E, you still got a stick axle and drum brakes.  Is it any wonder there was a long waiting list for an XK-E, even in the States?  (The initial production run was for export only.)

It was a engineering tour de force in 1961, at any price point.  At half the price and 90% of the pace of a Ferrari, it was brilliant.  And drop-dead gorgeous.  We all said so.  Today, we geezers tend to lump the XK-E in with 250 GT's and Corvette Stingrays (IRS, disc brakes) and Porsche 911's into a Golden Age.  But back then, for a few years, the XK-E was King of the Mountain.

I've not driven an XK-E, but had a long ride in a well-driven Series 1 car in 1974.  By the standards of the day, it was a sports car.  It was marketed as such and raced, including at the international level.  But it's not a sporty car.  That hood is every bit at long as it looks: visibility could be better.  Without power steering, parking and low-speed maneuvers are a chore.  With a 4-speed box and long diff gear, it doesn't scoot away from rest.  It shone as a road car--a GT--which was its intended use.

XK-E independent rear suspension, inboard disc brakes, and subframe restored by Sport & Specialty of Durand, IL.  The
availability of this state-of-the-art unit in a production car was a "first" in 1961.  It is the go-to assembly even now for
people building hot rods and custom cars with IRS.

1969 Porsche 917 PA (1:18 Model)

Above and below: exposure increased in these pics to present better online.  As far as I can tell, the actual white and blue
are perfect.  Rear deck is not removable.  Actual car is in the Collier/Revs Institute Museum in Naples. FL.

Above: closeup of mirrors and struts supporting the "dive planes."
Below: closeup of the power train / rear part of the frame.

Manufacturer information for those interested.

This is the best 1:18 scale scale die-cast model of a Porsche 917 K that I've found.  C.M.C. is my benchmark, but doesn't make a 917.  Normally I don't have a problem with Autoart (and I have their 917 LH Martini & Rossi).  But the rear frame detail of Autoart's 917 K doesn't satisfy me.

The underside of the Spark model could be better, but there is nothing to complain about as the model rests on its wheels.  The detail is so good, and so delicate, that I got a plastic display case for it.  It's expensive.  But I doubt my own ability to improve on it (with limited and rusty skills) enough that the unbuilt Tamiya 1:24 scale plastic kit will remain, for now, in its box on my closet shelf.

Purdy Car

At Torrey Pines, 1954.

Before he was a factory shoe, and the go-to test driver for the Ford GT 40 racing program, and Carroll Shelby's Cobra team, and a hot-shot Porsche 550 Sypder driver, tearing up the small-bore modified classes on the West Coast--

Ken Miles designed, built, and raced two MG specials with huge success.  This the second one, the lovely "Flying Shingle."