Is it just me, or would it totally rock to replace the 100hp inline-3 in the Dodge Slingshot concept with the SRT-4 engine? That thing weighs less than 800kg to begin with.
I hope they end up producing that car. If they do, this is bound to happen. With the added weight of the bigger engine, the result is still about 340bhp/tonne. That engine also has a lot of potential.