F1 engines are being reduced in size from 2.4L V8, down to 1.6L V6 in 2014 as a nod towards environmental greenness. Yet, the cars will have similar power to this seasons cars. ..
The problem being a race engine will be kept on the boil, probably running between 2.5 and 4bar of boost whereas a road car engine is going to be going from idle up to mid range revs for most of it's life. Huge boost presures to get more power usualy mean huge amounts of turbo lag or getting your gear selection and foot down early to wring the living daylights out of it, which would make it a real pain in the rear.
If theres something clever like an additional motor (like the KERS system) or a supercharger/turbo combination to assist low rev performance, it could be a hoot.
Or it could be a gutless wonder like so many larger cars with the base engine