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Jaguar Classic's 3.8-liter engine block costs nearly as much as a new Jetta

Jaguar is helping collectors restore its vintage models by resuming production of the 3.8-liter six-cylinder engine block it built between 1958 and 1968. Called XK, the straight-six originally powered half a dozen models (including the famous E-Type), and its modern recreation costs nearly as much as a new compact sedan. Wearing part number C22250, the cast-iron block is built to the original's specifications by Jaguar's Classic division, and it comes with a 12-month warranty. Sourcing a used block would likely be markedly cheaper than ordering a new one from the factory, but enthusiasts who value originality above all will appreciate the fact that it comes certificate of authenticity. Customers who send the company proof of vehicle ownership can even retain the serial number from the engine they're pulling out, though an asterisk will identify it as a replacement. Jaguar built the XK engine for several decades, but the 3.8-liter variant only remained in production for 10 years. It powered cars like the surprisingly quick XK 150 roadster, the stately Mark IX and early examples of the E-Type, though its displacement grew to 4.2 liters in 1964. As of this writing, only the 3.8-liter XK is available new. If the E-Type you're painstakingly restoring deserves nothing less than the best, or if you think a 3.8-liter block makes an awesome coffee table, you'll need to send Jaguar a check for GBP14,340 including taxes, a sum that represents approximately $17,800 at the current conversion rate. Enthusiasts will also need to source pistons, connecting rods, a crankshaft and a complete cylinder head, among many other parts, so the cost of a full rebuild will lie well beyond the $20,000 threshold. For context, Volkswagen charges $18,895 for an entry-level Jetta. Related Video:

Artist imagines eerie world where cars have no wheels

The wheel ranks right up there with the telescope and four-slice toaster in the pantheon of inventions that have moved humankind forward. But what if a circle in three dimensions had never occurred to anyone, and we all had just moved on without it? Perhaps we'd be driving around in Lucas Motors Landspeeders with anti-gravity engines. Or maybe we'd have the same cars we do today, just without wheels.
That's the thought experiment that seems to have led French photographer Renaud Marion to create his six-image series called Air Drive. The shots depict cars throughout many eras of motoring that look normal except for one thing: they have no wheels. The models used include a Jaguar XK120, Cadillac DeVille (shown above), Chevrolet El Camino and Camaro, and Mercedes-Benz SL and 300 roadsters.
Perhaps one day when our future becomes our past, you'll be able to walk the street and see with your own eyes the rust and patina of age on our nation's fleet of floating cars. Until then, Monsieur Marion's photographs will have to do.

Jay Leno hits the road in a 1951 Jaguar XK 120 Hot Rod

The 1951 Jaguar XK120 featured in this episode of Jay Leno's Garage might look vaguely like a classic Jag roadster at first, but underneath this cat is something completely different. It was built by Leno's buddy Jason Len of XK's Unlimited when he grew tired of keeping these convertibles stock, and this aluminum-bodied beast was the result. Practically the only major Jaguar part left is the engine. It's a tuned 3.8-liter inline six from an E-Type with Weber carbs that makes an estimated 300 horsepower out of some gorgeous side-exit exhausts. The mill is backed up to a BorgWarner five-speed manual. However, the big surprise is the chassis. In place of Jag's original solution, Len has a custom tubular space frame that he claims sheds some 1,000 pounds over the stock example. There are still some classic Jaguar touches left, though, such as the fin over the driver's head that is reminiscent of the D-Type, and both the wheels and gauges are replicas based on that classic racer. Of course the best part is watching Jay drive this Jag hot rod. This big cat really knows how to purr.