GM-Honda? No, that'd be all take and no give.... what would Honda add to that it doesn't already? V6s? Honda already provides the V6 for the Vue. The HF V6es are quite competative with the other DOHC engines out there. Transmissions? Sorry, GM's 4-speed is smoother and more reliable than Honda's 5-speed. Hybrid Tech? Na, GM may be a little late to the game, but they have 2 very competative hybrid technologies coming.
GM- Toyota? No deals with the devil, kthnxbye.
GM- BMW? BMW would never agree to it. But if they did, it would give GM access to some engine technology and suspension technology.... and do what for BMW?
GM-Ford? Considering they've already partnered up for the 6-speed, the only other thing they could partner on is engine technology. I don't think anyone wants to see Fords platform shared with Chevys.. That's just dumb
GM - Nissan - Renault? The sad part is this brings nothing to the table technology wise. Any single piece of technology that N or R have, GM has a competative product to. The biggest advantage would be having Ghosen. If anyone can polish a turd, he can.
GM - VW/AUDI? This makes the most sense of all of the above if it weren't for the fact that VW has been acting like a schizophrenic recently. GM could get access to Quattro and small diesel technology, better access to Europe. VW could get access to GM's dealer network, larger vehicle technology for Mini-vans, trucks and SUVs.
GM by themselves? If they build it they will come. They can rebuild, they have the technology. The HF line of V6s runs with the best competitors. GM has V8s that can beat nearly all other V8s and a few V10s. Their transmissions are the most reliable. The 6-speed is almost here. They will be offering two choices in hybrid technology. Exterior design has improved dramaticly. Interior design looks like it will be following along.
GM is in a great position to take off.... and if you think about it, they'd be flying now if it weren't for a $1500 per car UAW albatross hanging from their neck.