Toyota would not have to worry about manufacturing a $3000 car for India and instead it could focus on bigger and more luxurious vehicles just like it is doing now.Suzuki would be a gainer as well with the Toyota backing people would start taking Suzuki cars more seriously in established markets.
Suzuki[automobiles] would be the perfect partner for Toyota.Suzuki enjoys a very healthy market share in emerging markets and is a profitable venture.Its compact vehicles now seem to be accepted in many markets.Its production system too follows the japanese lean production methods.
But then there are a number of problems too for such a patnership,what happens to Daihatsu.Then there is the Suzuki angle as well,they may want to go it on their own.Then there is Nissan who have smartly signed a deal with Maruti.
It sure would be a shortcut to establish itself as number one but then Toyota does not like taking shortcuts does it.