[Peter Hill]

Originally Posted by samwichse

Pretty much this. Go buy an Insight with a blown engine/crapped out CVT and a dead hybrid battery. Stick your electric bits in. Go.

But you can do it with so much more style by getting a RX-7 FD and they blow engines daily. Also gives more flexibility in transmission.

Cooling system is responsible for 5-10% of vehicle drag. Rule of thumb, input energy is equally split between wheels, exhaust and coolant. As you will be blanking off a 250bhp cooling system instead of 67bhp it will be near to 10% of total drag while the Honda will be around 5%.

RX-7 FD (base) 90% of 0.518 = 0.466 m².
Honda Insight 95% of 0.474 = 0.45 m².

Not cashed in rear wheel spats or disc wheels.

Is it worth it when you will be seen in a Honda Insight?

Originally Posted by renault_megane_dci

I'm interested in that question too but more thinking along the lines of :

Would it be plain stupid to add a perfectly shaped roof addition in order to get a better angle at the back ?

Thanks in advance.

A slant back is nearly as bad as a notch back. All modern hatchbacks although fully conforming to the definition of a Kamm tail have a spoiler that extends the roof line a long way past the hatch to make a recessed transom that is required for a Camm tail.