The BMW 3-Series and the Mercedes-Benz C-Class are the benchmarks in the segment, and both add smaller turbocharged four-cylinder engines to the lineup this year.
Both are available with a range of body style and drivetrain configurations, and their handling and build quality are top-notch.
The Cadillac CTS is also a relative newcomer to the segment, but its low price and excellent feature set make it a good value proposition.
The Infiniti G37 has a new, more powerful 332-horsepower engine, but is based on the same excellent-handling FM platform as the G35 before it, with well-balanced sports-sedan styling and proportions, plus available all-wheel drive.
It's also substantially less expensive than the German sedans.
The Audi A4 is more fuel-efficient and has a great interior, though it can also feel a little noisy and coarse.
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|2012 Lexus ISBrowse Used Listings||2012 Audi A4Browse Used Listings||2012 BMW 3-SeriesBrowse Used Listings||2012 Cadillac CTSBrowse Used Listings||2012 Mercedes-Benz C ClassBrowse Used Listings|
|16 MPG City / 30 MPG Hwy||18 MPG City / 31 MPG Hwy||13 MPG City / 34 MPG Hwy||14 MPG City / 27 MPG Hwy||15 MPG City / 31 MPG Hwy|
|Gas V6||Turbocharged Gas I4||Turbocharged Gas I4||Gas V6||Turbocharged Gas I4|
|Sub-Compact||Compact Cars||Compact Cars||Mid-Size||Compact|
|4-Door Sport Sedan Manual RWD||4-Door Sedan CVT FrontTrak 2.0T Premium||4-Door Sedan 328i RWD||4-Door Sedan 3.0L RWD||4-Door Sedan C 250 Sport RWD|
|Rear Wheel Drive||Front Wheel Drive||Rear Wheel Drive||Rear Wheel Drive||Rear Wheel Drive|
|Sedan||Sedan||Sedan||4 Door Sedan||4 Door Sedan|
|Manual||Continuously Variable Ratio||Manual||Manual||Automatic|
|Detailed Spec Comparison|
|2012 Lexus IS vs. 2012 Audi A4||2012 Lexus IS vs. 2012 BMW 3-Series||2012 Lexus IS vs. 2012 Cadillac CTS||2012 Lexus IS vs. 2012 Mercedes-Benz C Class|