Well if I was high up at Mazda I would personally be pushing the hell out of a lotus elise/exige like Mazda with a rotary available as turbo/twin and NA, can you imagine a lotus with a smaller engine with more output. That would be my dream track car though and it would never happen. It would also have to an easy to pull out and rebuild access point since it would be mid engine which would be hard with out pulling it straight up. Also I personally think they should try for the first hydrogen rotary sports car, personally I can see mty self owning a hydrogen car but every single one looks ugly like all the hybrids out there, why not make a nice sports car body ran off hydrogen....anyways, venting my ideas.

 

Hydrogen is not a good fuel, even less so for sports cars. It has about half the power as gasoline and costs more energy to produce. The hydrogen RX-8 had a 60-mile range before it needed to be filled up again.

 

Perhaps not the very highest 'thrust to weight ratio', but certainly up there. The most amazing thing to me tho' is how small the Renesis is. It's one of those things that's actually the size of a bread box.

 

ok so I thought about it and I realized that the smaller the engine, the more difficult it is to get a good power to weight ratio. So, as far as say 2.5 liter motors and smaller, the renesis is probably right up there. It certainly whoops the s2000 by a long shot anyway, which is saying a lot because that car is known for making huge power from a small motor.

 

I think the stock 20b in the cosmo was around 300hp with the turbos.

NA 20b with a PP and supporting mods is also around 300hp or higher.

NA 20b/PP + FI has potential for > 500hp