forstly welcome 200bhp starlet secondly to clear up the shouldnt be doing 120mph on roads etc lets talk a nice long run on a track or shut off runway etc i believe the starlets can do 140-145 mph. a lad i know tracks starlets and he said hes had 140 out of his with still a bit to go so im guessing 145mph is more realistic. as for the 120mph cracking the head thats complete bull and the guy whos telling you all this is abvously a complete clot lol hope this helps