My Smart Car just arrived. I can buy an extended warranty for 1 yr at $1,544, 2 yrs at $1,561, 3 yrs at $1,748 & 4 yrs at $1,851. The dealer is telling me the 2yr at $1,561 is very popular. Are most owners buying an extended warranty? Also they are offereing "tire and wheel protection for $595 for the time I own the car. Thoughts....did you buy these warranties? Also they are pushing Venture Shield to protect the paint on the front of the care from road chips.