[Perfectlap]

A Cayenne engine in a Boxster sounds interesting. A V8 Audi engine sounded interesting until I spoke to my Porsche Indy who could not have more bad things to say about their engines after I mentioned an interest in buying an R8 once the prices had come down.
Subi Boxer engine would be pretty bad ass. A guy in one of the many autocross clubs around here made some exhaust mods to his and it sounded like a .50 caliber cannon.