Current GM platform list.....

Gamma - subcompact FWD
Delta - compact FWD
Epsilon - mid-size FWD
Kappa - compact RWD
W - midsize cars FWD
Sigma - midsize RWD
G/K - fullsize cars FWD
V - full-size RWD
Theta - crossover SUV AWD
U - minivan FWD
Lambda - minivan FWD/AWD
Y - sports cars RWD
GMT - trucks RWD

13 sdifferent platforms. 9 are for cars, 4 are RWD. Sounds like there should be more RWD cars from GM, but there just are not. Weird. But then again the Kappa is for the Solstice, and the Y is for the Vette/XLR.

Zeta can be added to that list soon :D

yep, and the Pontiac GTO and G8 will come on it

and CAMARO :D

Don't forget "TE"

TE will underpin a forthcoming smaller Caddy SUV/CUV and the Saab something or other...

Then again with the changing tides at GM, it's possible the TE program might be on hold or canned. I haven't heard anything about it lately.

Don't forget "TE"

TE will underpin a forthcoming smaller Caddy SUV/CUV and the Saab something or other...

Then again with the changing tides at GM, it's possible the TE program might be on hold or canned. I haven't heard anything about it lately.

meh, it's for SUVs, it is forgetable.

Gamma - subcompact FWD
Delta - compact FWD
Epsilon - mid-size FWD
Kappa - compact RWD
W - midsize cars FWD
Sigma - midsize RWD
G/K - fullsize cars FWD
V - full-size RWD
Theta - crossover SUV AWD
U - minivan FWD
Lambda - minivan FWD/AWD
Y - sports cars RWD
GMT - trucks RWD

13 sdifferent platforms. 9 are for cars, 4 are RWD. Sounds like there should be more RWD cars from GM, but there just are not. Weird. But then again the Kappa is for the Solstice, and the Y is for the Vette/XLR.
You missed the T-body cars. They are GME and GM Brazil compacts. Also the replacement for the T-cars and Delta cars will be consolidated. W- is dead soon enough to be replaced with LWB Epsilons. The H-body DTS and Lucerne aren't on there. The U vans willbe replaced with the Lambda vans by 2008.

W- is dead soon enough to be replaced with LWB Epsilons. The H-body DTS and Lucerne aren't on there. The U vans willbe replaced with the Lambda vans by 2008.

DTS and Lucerne are G body.

You know better than I do that some W's may be replaced with global RWD and some may be LWB Epsilon II as you are better at sorting some of this stuff out better than anyone else I know of.

For Trucks there are currently 4 platforms in use

GMT355 = Colorado/H3
GMT360 = TrailBlazer/Envoy/SSR
GMT800 = H2/old trucks
GMT900 = Tahoe/Esclades/FullsizeTrucks

also is Lambda getting minivans? I thought they would just be crossovers.

Too many platforms.

Too many platforms.

And yet, the one we care about the most is still not in production :(

You know better than I do that some W's may be replaced with global RWD and some may be LWB Epsilon II as you are better at sorting some of this stuff out better than anyone else I know of.
Wow I am blushing. Thanks. I know there are many others here that figure stuff out quicker or flat out know more than I, they just can't share all their information.

Wow I am blushing. Thanks. I know there are many others here that figure stuff out quicker or flat out know more than I, they just can't share all their information.

For a non-insider, you're good.

For a non-insider, you're good.
Actually I may get some info on the next Super Duty trucks in the not to distant future, the plant isn't far from here and I know workers over there. I know the update is NOT very far off and will be quite extensive, a few trucks with cammo do run down the line on occasion.

Gamma - subcompact FWD
Delta - compact FWD
Epsilon - mid-size FWD
Kappa - compact RWD
W - midsize cars FWD
Sigma - midsize RWD
G/K - fullsize cars FWD
V - full-size RWD
Theta - crossover SUV AWD
U - minivan FWD
Lambda - minivan FWD/AWD
Y - sports cars RWD
GMT - trucks RWD

13 sdifferent platforms. 9 are for cars, 4 are RWD. Sounds like there should be more RWD cars from GM, but there just are not. Weird. But then again the Kappa is for the Solstice, and the Y is for the Vette/XLR.

Still have the remains of the Omega (Holden VZ line) for a few more months. ;)

Nissan had around 20 platforms when the company was in financial strife... they then began whittling that number down to around 5. They may have added more since their turnaround.

It does seem like too many. I wonder how many platforms Toyota get by with considering similar sales numbers globally (forgetting for a moment they don't have too many RWD car platforms)?

Nissan has 3 to 4 total chassis.
There is whatever the Sentra is on, dont know about the new one
The Altima and Maxima are based off one chassis, just longer and wider. Murano is also based off this and I want ot say the Quest, but I dont think so.
Infinity has the FM chassis mostly. FM has 350Z, G35 coupe and sedan, M35 and 45, FX 35 and 45, and will underpin the new Skyline.
All the trucks are basicly based off the Alpha chassis, both full and midsized trucks.

GM does have a LOT of chassis. They need Delta or Delta II, something that can be more modern. Epsilon II needs to be flexable to offer a propper mid size car with good balance and handling. Then the Zeta cars to cover the low-cost RWD. Then there is Sigma II to cover all of Caddy, the 900's as well.
Kappa and Y body, they will always be a low production unique chassis.
IMO, there is heavy overlap in trucks. I dont understand how GM could not have made a pick up off the 360 chassis. Its a solid chassis, no doubt. That big 6cyl would have devoured Toyota and Nissan before they even thought about brining any mess into the midsize game. Could have had the 5cyl tuned for about 200hp and get better gas milage or juice up the 4cyl Atlas and have that as base, with the 4200 as top of the line. Would have made a killer mid size truck. And then there is always the ability to go V8. But the 4200 vs the Toyota 4.0 and Nissan 4.0, it would have been game over for the imports. I still, to this day do not understand why GM has 355. Probably the biggest waste of time.