It was a standard track day . There was maybe 25/30 cars max. So most of the time you had an empty track .
I drove Dave's GT3 and then directly after , I drove Blueline's GT4 . Both for about 3 or 4 laps.
Verdict :

The GT3 is faster , no dougt about that . It feels like a razor sharp track setting time machine . The speed you reach are getting frightening ( to me anyway
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The GT4 is more dramatic . The noise is more brutal , the car feels much lighter ( if only the GT3 could feel like that !!! ), it pulls strongly , the balance is superb ( I personally prefer a heavier back as in the Gt3 ) . Probably more fun , but not in the same league as a GT3 .
I did not like the '' blips'' on the downshifts . I like to '' blip'' myself and felt them intrusive . Maybe I would get used to them after a while . It does allow you to do very fast downshifts .
So, I did find it very fun , but maybe in the long run one could feel that he reaches his limits quicker in the GT4 . In the GT3 there is probably a very long way to go until you get to the limits and master fully that car.
The GT4 is a great ' toy ' ( not to be taken lightly ) , the GT3 is a more serious, faster older cousin..
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997.2 C2S, PDK, -20mm