Yes it has, also a friend of mine has a 150 and went the same route two years ago, having had his car since 2008 , the car has never performed like it ! Im told Steve G sorted the 150 out for Caterham but they had already made there minds up to go to the 140 as they could take the 140 engine unit straight out of the box and put it in the car ! Luke Stevens at Team Leos Motorsport has Steve work with him at his rolling road in Fordham near Newmarket should that be easier for you ? Kingsley