They are great handling cars but lack straight line grunt.
The chap who owned my CS before me had lavished it with attention and money, including a full engine rebuild by one of the most respected people in the UK and yet it still only delivered the stock 240bhp. When I dyno'd it, the chap said it was the highest bhp 968 he'd ever tested and that unlike 911s (where Porsche under promise and over deliver on BHP) in his experience the 4-cylinders from Stuttgart never seemed to make the claimed numbers.
I still like the 968 and believe they are good cars but rapid they are not imho. As noted above, where they exceed expectations is on the handling front - with stock suspension (avoid those with tweaked suspension) - they are very sweet cars to drive and quite special.
