I have a new 308 GT 1.6 THP 200 (badged as a 308 GTI even tho' they said they wouldn't). Overall I am pretty chuffed with the car but have a problem that comes and goes - flat spots in first gear. Every now and then, I put my foot down to pull away from a junction etc and not a lot happens. The revs climb as usual but acceleration is almost non existant. Going up to second seems to cure the problem, although I have had one occasion when it was 1st, 2nd & 3rd. This happens about once during a commute to work (15 miles) and can happen at any time, hot or cold. The car has done about 2000 miles and is 2 months old. The dealer has had a look at it when it had it's 1000 mile service but couldn't find a fault. Any ideas?