I have an 40th anniversary mustang GT convertible and took it to the track last night for the first time. I was disapointed with the times I ran and became eager to start sinking money into modifications for it. I always hear people say convertibles are not worth racing because they are heavier and have more flex. However I really do like the car and don't plan on making it a 9 second car, I just wanna make it fast enough to have respectable track times (high 11's) and be able to have a driveable car to cruise with on weekends. Do I start sinking money into my convertible or sell it and pick up a hard top GT? Please give me your advise and tell me what you think. Thanks.