Wow...that's pretty steep. Have you looked at the Cadillac CTS? It blows away most of the competition. Better handling, more horsepower, more options..Google the test results.might be worth a look before laying down any serious coinage.
Cadillac STS V-8 - Road Test - Car Reviews - Car and Driver Comparison Test: 2011 Cadillac CTS-V Coupe vs. 2011 BMW M3 Coupe