was driving along the other day wen all of a sudden i got loss of power, car started to sound like a tank and everytime i changed gear there was very little response from the throttle, even with my foot to the floor, a freind has said it could be spark plug related but im not well up on engine's and thought i'd throw it on here for your tech heads to pick your brains. when i parked up the car was shaking, i was thinking gear box problem (hope not) and i dont think its the exhaust, even though it sounds like a tank when im driving it just dosent feel like the exhaust is causing the problem. any help is much appreciated.