A luxurious 02 Mercedes S430 at 90k miles for $20K, OR an 2002 Cadillac Deville DTS at 40k miles for $18k?

I’m looking to purchase a used auto around 20k. I like the 2002 S430 but it has high miles which most say isn’t a problem for the Mercedes which should go 300+ if pampered. I also like the 2002 Cadillac DTS. For my price range ($20k)they come at half the mileage as the S430’s do. Depreciation value, maintenance, quality, and style as factors which would you choose? OR I can go 2005 Pontiac Bonneville at 20k miles (practically new) for $18k. What do you think Yaho…

Source: http://www.szbenz.com/2011/01/a-luxurious-02-mercedes-s430-at-90k-miles-for-20k-or-an-2002-cadillac-deville-dts-at-40k-miles-for-18k/

Mercedes-Benz