Brave man Lukas :) 339km/h is abit over 210mph, 10 better than Clarkson's feat, your's has to have some mods?
The 200mph was a vidcap from Clarkson's video, I had to imagine it's a stock press car from Porsche. In the video he said he did the run on a downhill stretch on the autobahn with a bit of tail wind. Before the run he was saying the 997TT official top speed is 193 and he wants to see how fast it can really go. I guess this is prove that the original 997TT IS a 200mph car, take that GT-R.
An interesting note was that the boost never went above 1.1bar.
I actually hit 347 km/h (speedo, 334 km/h GPS), but taking a picture at that speed, single-handed, is a bit pushing your luck... I actually tried, but the result is:
Cruising along at a more normal speed, its much easier:
Car is not stock, just ECU tuned..
Next time, I will take along a proper camera.
And for the performace:
Check 100-200 and 200-250 times: