Greg Fishman

I love the C4(S), when the conditions are bad. Can't wait for some spring (read raining) DE's to really give it a work out. The weight on 993s are so variable that one person's C4(S) might not be as heavy as another RWD car. If the weight between cars is equal the AWD car should have a better balance over the RWD car.

rmpc993

How much of a performance decrease with the C4. Is it really noticeable? Is the maintenance higher on a C4?

cabrio993

Sorry guys...I just ran out of butter.

obchuck

Is that true Fishman? I would think the balance would be better on a C2? Don't AWD cars have a tendancy for understeer when pushed to the limit?

rmpc993

Would it be different if we were just talking about a regurlar C4 as opposed to a C4S?

Greg Fishman

For the same amount of weight the AWD cars should have more weight over the front wheels and that will decrease understeer. A friend of mine and I built very similar race cars, his was a C4S, mine a C2S. Once dialed in understeer was not an issue with either car. I would say the C4S was actually a faster car as he could get on the throttle noticeably quicker due to the AWD.

Any stock 993 is going to push, a proper alignment, tires, sways, etc will go a long way to eliminating that.

InTheAir

C4's also come with additional equipment vs. their 2wd counterparts:

C4 -
Silver Brake Calipers
Silver Topped Gear Shifter
Electro-Hydraulically Boosted Brake System
Silver Carrera Badge

C4S - (AFAIK)
Big Red Brakes
US Sport Suspension
Electro-Hydraulically Boosted Brake System
Silver Carrera Badge

99three

Both are 'hippy' but one has a phatter ***. That said, the C4 is slightly slower than the C2 at top speeds.

Greg Fishman

A C4S has a slightly lower top speed due to drag but the documentation I have seen shows the C4 and the C2 with the same top speed. Do you have different info?

InTheAir

"Performance" discussions, however, are somewhat comical when you think about it. The difference between a 2wd and a 4wd is about 0.1 seconds from 0-60mph and about 2-3mph in top speed. 99% of the drivers here could not drive the cars to the performance extreme necessary to take advantage of any "speed" differences. However, they could take advantage of traction benefits.

curveraider

One other advantage of the AWD, at least in California, no smog test on the dyno... My baby passed with fly colors today

Greg Fishman

Exactly. The variability between cars can account for a higher difference than that.

99three

According to the specs on my mint copy of "The 911" Porsche brochure the C2 has a 0-60 time of 5.3 sec. and a top speed of 171 mph. Weight: 3064 lb

The C4S 0-60 time is 5.2 sec. and a top speed of 168. Weight: 3197 lb
The 133 lbs may add to the speed divergence.
If you're really torn just buy both.

Whichever one you chose it will make a wonderful addition to your family.

sidned

I was looking for a C2 and ended up with a C4 and couldn't be happier. Most of the time she drives like a rear wheel drive car anyway. The only time power is transferred to the front in any big way is when the rear loses grip (IIRC).
I agree with the previous comments that said go for the colour and condition that suits your pocket and don't worry if the front wheels get power or not.

Pickled Piper

I've just been out in my C4 on the damp and greasy roads that we regularly experience in the UK. The C4 allows you to apply signifcant amounts of power as you exit a bend and far earlier then you would feel comfortable doing with a C2. The improved traction means that it rockets out of a bend whilst other cars are scrabbling for grip.

I too went out looking for a suitable 993. I bough the best i could find it just happened to be a C4.

Just my two pence worth.

pp