i'm sure that someone can chime in with how much an S65 costs, but i've been told a replacement Carrera engine is about $30k, while a GT3 engine is $45-50k. take this with a pinch of salt because i only read it from a Porsche forum. it's probably way more than the S65, regardless. and Porsche will never win a value for money competition with BMW. with Ferrari, it could