Does anyone really have an idea? I've heard anywhere from 2007-10.
Barring any preproduction issues, how long does it take GM nowadays to produce an actual car from concept to showroom? 12 months? 18? 24?

 

I'd say 24 months is the most realistic (in my uneducated opinion on this subject). I defintely wouldn't expect a 2007 or 2008 model. Everything needs to be fully designed and engineered, then tooled, then tested for durability/performance/yada yada...

 

how do we know they're not currently being tested for all of those things? I mean, obviously the tooling isn't done, as they don't know what little tweaks and changes are going to be made until they get peoples reactions, but the underpinnings they've known for a while now, they could be testing it with another body skin on it, and nobody would be the wiser.

 

True, but I doubt they are... Who knows, you may be right.


I just know they usually like to get the whole car together and put it through a 'battery' of long term (simulated long term) tests.

 

24 months seems right, that is wut most cars take

 

With as much as the CAD drawings APPEAR to have in common with existing Sigma chassis'd cars, I hope that design and tooling can be fast tracked.

 

Too long.

 

remember the Cormaro.......the chassis and interior were Corvette, with a Camaro body on it.