I am looking for some pros and cons of buying an extended warranty for my 2008 Jeep Wrangler. I have 300 miles until the standard warranty expires. I do, however, have a lifetime warranty that covers the engine, transmission, and drivetrain. A 6 year/70k mile bumper to bumper warranty is $1200. There is a $100 deductible for each time I bring the car in. I have 3 years of car payments left. Since the powertrain is covered, is this a waste of money? Or is it a good purchase because it includes rental car coverage and roadside assistance? your thoughts?