no need to worry ,as i said the sport has not always got it on the log book ,i did the same thing even phoned the dealer saying they had ripped me of ,the problem is they were all registered as normal cars and then turned into sports after they get here,Chassis numbers will not tell you the only way to tell is to phone some of the dealers that have serviced it from the log book ,and while you have them on the phone clarify the service history,phone the owner and ask for the numbers etc and check it before you pick it up