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GM Kills Mid-Engine C7 Corvette

Posted in Car Tech, Cars, Chevrolet, Corvette, Emissions, Fast Cars, Fuel, Gas Prices, GM, Newsworthy by Suzanne Denbow | October 7th, 2008 | 4 Responses |


Renderings of the next-gen Corvette C7, due out in 2011

Neck-deep in a turbulent economy, GM has announced they’re officially suspending further development of the mid-engined C7 Corvette. Initially, plans for the new C7 received the green light from CEO Bob Lutz when early projections revealed a mid-engine mount could enable GM to do what the current Corvette’s front engine and rear transaxle layout cannot: allow for the possibility of cylinder deactivation. Several months into the plan, however, GM discovered that the cost of research and development of the fuel efficient C7 would ultimately exceed any potential CAFE benefits. Still faced with the obstacle of tighter CAFE standards in 2011, although the plans for a new engine mount have been abandoned, GM is still reportedly exploring the possibilities of a V6 C7, or, as it is more commonly known, a Camaro [I mean really, a V6 in a ‘Vette? What’s the point?].

News Source: LeftLaneNews.com]

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4 Responses

  1. I wonder how a midengine chassis would allow for cylinder deactivation??? Because last I heard, the special lifters required for 7000RPM and beyond –different from the lifters in GM’s slower-revving LSx engines, for pickup trucks, Camaros, etc– were one thing GM couldn’t de-couple in the C6-Z06, to stop the valves in the 4 deactivated cylinders from moving during part-throttle cruising/idling. That, and GM said “why bother” (well, not in those exact words…) when the LS7 is so efficient that it avoids the gas-guzzler tax WITHOUT cylinder-deactivation…

    GM also says the shape of the crankshaft and firing order make a V6 LSx engine impractical, if not impossible, due to vibration issues…but that was a decade ago, so I wonder if they got a solution to that. If they didn’t, don’t worry about a V6 Vette happening: They’ve said the V8 LSx design is as fuel-efficient as their old iron-block V6’s. That said, some V6’s can make 1000 HP…on race gas, at more than 10,000 RPM, not exactly an idea suitable for mass production. :-)

    Strange that you say GM made a decision to scrap CAFE improvements on the LSx when a Democrat was leading in presidential polls 1 month BEFORE an election. With Dems also controlling congress, more stringent CAFE requirements will no-doubt arrive just before GM rolls out the C7…

    “GM discovered that the cost of research and development of the fuel efficient C7 would ultimately exceed any potential CAFE benefits” might need to be re-thought since Obama’s EPA just said it will regulate CO2 emissions under the Clean Air Act; the cost of NOT making the Vette more efficient just went up on Nov 4th.

  2. john t. says:

    WHAT IN GODS NAME IS GM THINKING!!!! DONT THEY REALIZE THAT THE CORVETTE IS ONE OF THERE HIGHEST MONEY MAKING CARS THEY HAVE,IF THEY BUILD A MID-ENGINE CORVETTE AND GO TO A SMALLER (5.0 L V8) 32 VALVE ENGINE, MAKE THREE ENGINES,1 A FUEL INJECTED ONE,A TURBO CHARGED ONE AND A SUPER CHARGED ONE,SHAVE OFF SOME SERIOUS WEIGHT ON THE CAR AND IT WILL GET GOOD GAS MILAGE,AND HAVE PLENTY OF POWER, HERE IS AN FYI FOR YOU GM,FORD HAS A 3.0L TURBO CHARGED V6 THAT PUTS OUT 315 HP,THINK WHAT A TURBO CHARGED 5.0 L V8 WILL DO,(425 HP ? ? ? ). WHAT EVER YOU DO DONT LET THE CORVETTE GET AWAY.IF YOU BUILD A MID ENGEN C7 THAT LOOKS LIKE THIS.YOU WONT BE ABLE TO MAKE UM FAST ENOUGHT ! ! !! ! !

  3. jim DeMaria says:

    If your going put a v6 in a corvette you better offer a v8 as well. If you do not give that option you will loose me as a vette lover,as well as thousands of others. Do not make that mistake it will cost you millions.

  4. Greg P. says:

    come on gm a v-6 vette. you’ll lose me as a customer. and another thing its time to get the whole mid engine ordeal done. the vette is americas iconic car its time to make it a world iconic car!!