Is it possible for anyone to translate this? Looks so interesting but I can't understand unfortunately.
OK I have translated the test (only the important parts):
"... In the wintertime a simulation is a good way to drive something when you cannot drive outside. You can lock yourself in the room with a six pack of beer and just drive. But I am very interested how the simulation compares to the real car when you switch between the real car and the sim.
In the game you can drive right out of the gravel when you drive off the track. I have no idea if that would be so easy in real life so we just wont drive into the run off area. :-)
I am very curios how the game compares to the real car. Will the car drive the same? How about gear changes?
(In the real car) What we do first is to deactivate all the disturbing electronic helps that means DSC off, the dampers in sport plus mode, the steering in sport plus mode and the gearbox in sport plus mode.
How close gets the virtual world to the real world? And where is Tim faster?
(In the simulator) Here it is much more complicated because the feeling for the car is missing all the information from gravity. They try to compensate this rather good with the (force feedback of the) steering wheel, but of course that is not the same as in a real car.
Here (in the game) I have about five times as much concentration as in the real car. In the real car I can much easier talk (to the camera) even at the limits than here on the computer because it is extremely difficult to drive a clean line on the computer without any electronic aids.
What is very good are the gear changes which means you have to shift in the game at the same locations then on the real track. And you also dont have to shift higher than the fourth gear on the GP course in the game and in real life.
When it comes to the driving impressions of the M5 its is rather contradictory I mean when breaking and turning into a corner the digital M5 is under steering but when you come out of the corner the car is much too sensitive for acceleration. You have to put the car in a straight line before you can open the throttle. In real life it is different. There you can start the acceleration already in the corner and much harder without any sign of oversteer. And that decreases the lap time. Witch means the traction is in real life better than in the game. So they have given the M5 a lower traction as in real life.
A good sign for the work of the programmers is the top speed on the straights. That matches the real life extremely close. The virtual M5 comes 2 km/h to the real M5 (225 to 223 km/h).
But in the end the lap time from the virtual M5 is 3,8 seconds slower than the real M5 (2:14,7 to 2:18,5).
It was rather impressive that the lap times were that close. And I know that with much training I can reach my real time also in the game but that is a long way.
So the virtual game comes very close to the real world. Especially in the optics Forza 4 is a very well made game. But it is not possible to just sit down and drive a perfect lap. You have to train a lot. And that is why I still prefer the real experience."
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I hope I could help a bit.
To get a better idea about the tests of Tim Schrick I have found an older test of the M5 (E60) against the Vauxhall VXR8 which is completly subtitled in english:
Part 1:
http://www.youtube.com/watch?v=UcjtTQXFCqE
Part 2:
http://www.youtube.com/watch?v=GkSv5HOjGog