Have you had any problems up until now? I'm nto goign to recommend against a warranty, because everyone is different. What you should do is go into BMW and make sure all recalls and updates are done. Do you own an SMG? If you have an SMG ask the dealer to update the newest/most updated/proven software for it.
Does the engine warranty cover only the engine or does it cover the cooling system and transmission?
1995 BMW M3 Turbo - Dakar/Black