I have a 2017 R8 PLUS with 11000 miles purchased 4-23-2017. When the original warranty ran out I extended it for 2 more years through the Audi Pure platinum warranty. That warranty is running out in a little over a month. Any suggestions of a good warranty to coven me for another 24 months. Looking for protection from the big booboos like trans, engine, AC, etc. Any real experience with non factory insurers appreciated.