Basic questions from a newbie
 

I have a 76 S. What is the difference between a Carrea and an S?

If I put SC fenders on my car - is that a rear modification only, or are the front fenders also different? Will the bumpers etc need to be chaged as in a turbo body kit? I want to put bigger meats under the car for improved road holding.

For euro spec cars the 911 S 2.7 had 175 HP. The Carrera was a 3.0 with 200 HP. I'm not sure about US spec cars.

I think the SC/Carrera fenders are only wider at the rear. If you want wide tires at the rear it's possible to put 245/45 on 9x16 Fuchs. You can also put 255/40x17 on 9x17 wheels.

Can anyone explain the US spec cars?