Both the Mercedes-Benz CL Class and SL Class models are quite close in size, space, and purpose to the 6-Series models, even though they're significantly more expensive than the BMWs.
While the new Mercedes cars—particularly the new SL, and the high-performance SL63 AMG that competes with the M6—offer more visual flair and drama, the BMW models feel as inspiring, capable, and well-equipped.
Those in search of more of a driver's car—without giving up too many of the creature comforts—should consider the Porsche 911.
However you will end up sacrificing some comfort—as well as some of the 6-Series' advanced tech options.
Otherwise both the Jaguar XK and the Maserati GranTurismo offer comparable performance to the BMW, along with plush interiors and a perhaps slightly more exotic look and feel.
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|2013 BMW 6-SeriesBrowse Used Listings||2013 Jaguar XKBrowse Used Listings||2013 Mercedes-Benz CL ClassBrowse Used Listings||2013 Mercedes-Benz SL ClassBrowse Used Listings||2013 Porsche 911Browse Used Listings||2013 Maserati GranTurismoBrowse Used Listings|
|16 MPG City / 33 MPG Hwy||15 MPG City / 24 MPG Hwy||12 MPG City / 24 MPG Hwy||14 MPG City / 25 MPG Hwy||16 MPG City / 27 MPG Hwy||13 MPG City / 21 MPG Hwy|
|Turbocharged Gas I6||Gas V8||Gas V8||Turbocharged Gas V8||Gas Flat 6||Gas V8|
|Compact Cars||Mini-Compact||Compact||2 Seater||Mini-Compact||Subcompact Cars|
|2-Door Coupe 640i||2-Door Coupe Touring||2-Door Coupe CL550 4MATIC||2-Door Roadster SL550||2-Door Coupe Carrera||2-Door Coupe GranTurismo Sport|
|Rear Wheel Drive||Rear Wheel Drive||All-Wheel Drive||Rear Wheel Drive||Rear Wheel Drive||Rear Wheel Drive|
|Automatic w/Manual Shift||Automatic||Automatic||Automatic w/Manual Shift||Manual||Automatic w/Manual Shift|