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GM applies for LT5, LTX trademarks... are new small block variants coming?

Recently discovered General Motors trademark applications for LT4, LT5, LT88 and LTX have observers wondering what kind of high-performance offerings could be on their way. A new LT4 would mark a return of the engine designation first used on the Corvette Grand Sport, SLP Pontiac Firehawk and SLP Chevrolet Camaro SS from 1996 and 1997. Supposition at Corvette Forum - which provided advance intel on the C7 like these leaked images - believes a new LT4 could go into the high-performance trim of the next-gen, 2015 Camaro that would be more powerful than the 580-horsepower Camaro ZL1.
Seeing an LT5 again would also be déjà vu - in its former life it was a 5.7-liter V8 for the C4 Corvette ZR-1 from 1990-1994 designed by Lotus, producing from 370 hp to 405 hp. A mix of rumor and hope is that the new LT5 will be a supercharged evolution of the 6.2-liter LT1 (pictured) placed in the new C7 Corvette, and that it will go into the C7 version of the ZR1 pumping out something like 700 hp.
The LTX trademark is, as with that last letter, a complete mystery. If the "X" isn't a generic way to denote the whole LT family, it's wondered if it LTX could refer to a crate motor offering like the LSX.

Chevy SS prototype spotted wearing Pontiac G8 clothes

Do not adjust your computer screen, you are not seeing the rebirth of the Pontiac brand. General Motors has chosen to use a G8 to disguise a test mule for the latest prototype of the forthcoming Chevrolet SS. The G8 was closely related to the Holden Commodore and Vauxhall VXR, the platform upon which the new Chevrolet performance model will be based. It should come as little surprise, then, that GM has opted to use the cladding from the former G8.
Thought the front clip of this mule is pure Pontiac, note the vents immediately behind the front wheel. That is a distinctive design hallmark of the Vauxhall VXR. Also note that this vehicle is right-hand drive, as the Holden and its Chevy counterpart will be very closely related. That likely includes potential drivetrains. The spy photos of this mule also reveal very wide rear tires, and rear wheels that do not match the fronts.

The story of the 2014 Chevrolet SS: "Luxury, power, refinement, handling"

Not including the women and men who built it, the 2014 Chevrolet SS has only been seen in person by a piddling number of people - fewer humans than would fill the gymnasium at a high school volleyball game. Not including the men and women who built it, no one has driven it. Even so, it is already saddled with two controversies: the way it looks and the way it shifts.
First to that shifting. Did we love the last Americanized Holden, the awesomely sportsome Pontiac G8 GXP, and its six-speed manual? Of course. Do we wish the SS came with a six-speed manual? Of course. But we'd like a toboggan to come with a manual transmission. We'd put a manual transmission on a weasel if we could because we're just wired that way; if it moves, it should come with a stick and a clutch. Or at least the option.
Let's climb down off the ledge, though. We haven't driven the SS and we have no idea how good (or not) the automatic is. And the Hobson's Choice in transmissions when it comes to sport sedans like the BMW M5, Mercedes-Benz E63 AMG and Jaguar XFR-S and, oh yeah, cars-that-really-should-have-manuals like the Audi R8 and Nissan GT-R and Porsche 918 and every single Lamborghini and Ferrari, for instance, hasn't stopped us from enjoying what is clearly the gruesome, dual-clutched demise of Western automotive civilization. Because in spite of our ululations at the dying of the six-speed light, we understand.