The A4 sedan remains embroiled in a longstanding rivalry with the Mercedes-Benz C-Class and BMW 3-Series.
The C-Class gets some extensive changes for 2012, including a new base turbocharged four-cylinder engine, in the C250, so it's now pretty much up to snuff with the A4's more fuel-efficient sensibilities.
The BMW 3-Series is still the most popular with the traditional crowd of driving enthusiasts, though the latest 3-Series has become heavier and quite a bit more expensive; its turbocharged inline-six offers brilliant power, however.
The Infiniti G37 is an interesting alternative, sporting BMW-like handling and matching it with Japanese design flair; but the G can feel a bit coarser with respect to road noise and powertrain refinement.
The Cadillac CTS is perhaps GM's best effort yet, with remarkable handling and top-notch entertainment and trims.
And the Acura TL is worth considering, too, for its somewhat roomier backseat, composed ride, and surprisingly good handling, especially in all-wheel-drive versions.
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|2012 Audi A4Browse Used Listings||2012 Acura TLBrowse Used Listings||2012 BMW 3-SeriesBrowse Used Listings||2012 Cadillac CTSBrowse Used Listings||2012 Mercedes-Benz C ClassBrowse Used Listings|
|21 MPG City / 31 MPG Hwy||17 MPG City / 29 MPG Hwy||17 MPG City / 34 MPG Hwy||16 MPG City / 27 MPG Hwy||15 MPG City / 31 MPG Hwy|
|Turbocharged Gas I4||Gas V6||Turbocharged Gas I4||Gas V6||Turbocharged Gas I4|
|Compact Cars||Mid-Size||Compact Cars||Mid-Size||Compact|
|4-Door Sedan CVT FrontTrak 2.0T Premium||4-Door Sedan Automatic 2WD||4-Door Sedan 328i RWD SULEV||4-Door Sedan 3.0L RWD||4-Door Sedan C 250 Sport RWD|
|Front Wheel Drive||Front-Wheel Drive||Rear Wheel Drive||Rear Wheel Drive||Rear Wheel Drive|
|Sedan||4 Door Sedan||Sedan||4 Door Sedan||4 Door Sedan|
|Continuously Variable Ratio||Automatic||Automatic w/Manual Shift||Manual||Automatic|
|Detailed Spec Comparison|
|2012 Audi A4 vs. 2012 Acura TL||2012 Audi A4 vs. 2012 BMW 3-Series||2012 Audi A4 vs. 2012 Cadillac CTS||2012 Audi A4 vs. 2012 Mercedes-Benz C Class|