Need some advice and possible $$ information. I'm trading in my 17 Volt for an 18 and was wanting to get the warranty but was looking for experienced opinions and what people may have paid. I have had two blow outs and had to replace both tires and wheel on one due to terrible Illinois roads. Black Friday specials with Chevy are offering 60 months complete coverage for $595.00 with zero deductible. Thanks for any thoughts...