BMW's chief rival here is the Benz E-Class; among wagons, it's the Audi A6 Avant.
The Mercedes puts stronger emphasis on passenger comfort, and it has a more spacious interior, not to mention a more relaxed ride.
Audi's wagon comes only with a V-6 engine, but all-wheel drive is standard.
Handling isn't as crisp as with the BMW, and technology features lag.
Cadillac's STS is a worthy sedan rival with lots of performance verve; it just lacks BMW's prestige.
Saab's sport wagon is dated, but still has lots of space and an offbeat appeal.
The Infiniti M sedans have brisk performance and high-tech features, but the cabin lacks the refinement of the BMW.
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|2009 BMW 5-SeriesBrowse Used Listings||2009 Cadillac STSBrowse Used Listings||2008 Audi A6Browse Used Listings||2008 Mercedes-Benz E ClassBrowse Used Listings|
|11 MPG City / 28 MPG Hwy||13 MPG City / 26 MPG Hwy||14 MPG City / 27 MPG Hwy||12 MPG City / 32 MPG Hwy|
|Gas I6||Gas V6||Gas V6||Gas V6|
|4-Door Sedan 528i RWD||4-Door Sedan V6 AWD w/1SA||4-Door Sedan 3.2L FrontTrak||4-Door Sedan Sport 3.5L RWD|
|Rear Wheel Drive||All Wheel Drive||Front Wheel Drive||Rear Wheel Drive|
|4 Door Sedan||4 Door Sedan||4 Door Sedan||4 Door Sedan|
|Manual||Automatic||Automatic CVT||Automatic w/OD|
|Detailed Spec Comparison|
|2009 BMW 5-Series vs. 2009 Cadillac STS||2009 BMW 5-Series vs. 2008 Audi A6||2009 BMW 5-Series vs. 2008 Mercedes-Benz E Class|