In this months car and driver, in the rumors section or whatever, they quoted bob lutz of saying that the Solstice will get a 200hp 4cyl. He was quoted to say " this will make people forget about putting in a V8". Car and Driver asked were this 200hp engine will come from. Apperantly they didnt look at the page across that displayed the Saturn Ion RedLine with teh 205hp supercharged ecotec. So it seems as the GTP model will probably get a supercharged 2.0 engine. Then maybe a turbo 2.4 as a GXP model. So it looks as if there will be a 2nd engine, this coming from Lutz's lips.