Whenever you press the gas while driving, my car spews out blue smoke. It doesn't while sitting idle. What could be the problem and how much do you think it would be to repair? We have it listed for $3500 CAD which includes 2 sets of tires, one on mags, a competition stereo, brakes, exhaust, and the motor has about 83000K on it. It also had a paint job done. What would be a fair price to sell it at? Thanx for any help you might be able to give me.