Just looked into the warranty from BMW. Saw another thread with a recommendation to contact Pacific BMW. Prices quoted as follows for 2011 335i convertible. Are these high??
For the Warranty portion BMW will allow you to extend up to 5 years or 100K, 6 years or 100K, 7 years or 70K, or 7 years or 100K (please be aware that the 5, 6, and 7 years is really an extra 1, 2, or 3 years on top of the original coverage date). You can also choose between the Powertrain Plus, Gold and Platinum coverage. The Powertrain Plus is pretty limited so I would recommend either the Gold or Platinum coverage (the main difference is that the Platinum will cover navigation, stereo, CD player and entertainment and the Gold will not). The closest comparison to the CPO plan would be the Gold coverage up to 6 years or 100K. Here are the prices for those plans.
Gold
5 year / 100K $2,030
6 year / 100K $2,490
7 year / 70K $2,590
7 year / 100K $2,940
Platinum
5 year / 100K $2,300
6 year / 100K $2,830
7 year / 70K $2,950
7 year / 100K $3,350
The other option is to extend the maintenance to cover scheduled services on the car. This can be extended up to 6 years or 100K for $1,695.