Moin since Tuesday I have my V50. On the way to work and back, 25 km of road, city traffic and federal road ever about 1/3, he drives wonderfully. He sprints away from the traffic lights like Usain Bolt. Yesterday I got summer tires and had to drive about 250 km. The track consisted of above mentioned 25 km, then 200 km of highway and then again about 25 km of highway/city traffic. I noticed the following. The route to the highway, wonderful. Then on the highway the first kilometers “normally” drove then turned on the cruiser. After about 100 km of highway times a little pause. After that I noticed that he had no performance. At the time of giving gas nothing happened. I came to about 120-130 km/h (the gas pedal about 1/3 pressed through). I could push the pedal further through, but nothing happened again. In the meantime he accelerated again again, at the same time the consumption went on almost 10 liters. Then again on the country road (the remaining 25 km) again as at the beginning. After that I did not visit my car type again on the highway.