My car is a 2005 volvo v70r purchased new in july 2005. three weeks ago, with no warning, the car suddenly lost power, but kept running with great hesitation (i was driving at only 30 mph at the time). towed to dealer and throttle sensor replaced under warranty. yesterday (9/15), the same thing happened again, after only about 250 miles of driving. car was towed to dealer again am i awaiting word. in both cases an error message "decreased engine performance" was displayed. there was no advance warning. in both cases, i was driving at about 30 mph on a secondary road. these 2 instances have caused me to lose confidence in the car, especially to drive on highway.*jb