My mother-in-law brought her 2006 Lexus GS300 with 111,000 miles on it to Marin Lexus for an engine warning light. Marin Lexus proceeded to tell her she needed to rebuild the engine, not drive it too far and cost would be a minimum of $8,500. I brought the dealer estimate to Nick at Mellow and he said bring the car in and we will diagnose and try a different approach. Two days later, the car was fixed and cost was a total of $550!!!