Among compact sport sedans, it's the BMW 3-Series that's definitely the top rival to the G37.
And with the 3-Series redesigned this past year, it's tougher competition than ever.
The latest 3-Series has a fuel-efficient turbo four-cylinder engine offering up to 34 mpg highway, yet its handling retains some of the expected sharpness (with excellent steering).
A turbo six is also offered in the 335i models.
The Audi A4 is another top rival, with its rear-biased Quattro all-wheel-drive system promising more driving enjoyment; it has top-notch cabin appointments, although it's quite tight inside.
The interior of the Lexus IS 350 is also quite cramped, with a design that looks more dated, and it doesn't feel quite as sporty overall as the G37.
The Acura TL, in its performance-oriented TL-SH guise, would make a good alternative to the G37 if you size up the G37 as just too cramped and noisy.
So actually would be the somewhat larger, somewhat more refined Infiniti M sedans, which are still quite engaging.
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|2013 INFINITI G37 SedanBrowse Used Listings||2013 Acura TLBrowse Used Listings||2013 Audi A4Browse Used Listings||2013 BMW 3-SeriesBrowse Used Listings||2013 INFINITI MBrowse Used Listings||2013 Lexus IS 350Browse Used Listings|
|17 MPG City / 27 MPG Hwy||17 MPG City / 29 MPG Hwy||20 MPG City / 32 MPG Hwy||17 MPG City / 36 MPG Hwy||19 MPG City / 27 MPG Hwy|
|Gas V6||Gas V6||Turbocharged Gas I4||Turbocharged Gas I4||N/A||Gas V6|
|Midsize Cars||Mid-Size||Compact Cars||Compact Cars||N/A||Sub-Compact|
|4-Door Journey RWD||4-Door Sedan Automatic 2WD||4-Door Sedan CVT FrontTrak 2.0T Prestige||4-Door Sedan 320i RWD South Africa||N/A||350 4-Door Sedan RWD|
|Rear-Wheel Drive||Front-Wheel Drive||Front Wheel Drive||Rear Wheel Drive||N/A||Rear Wheel Drive|
|4 Door Sedan||Sedan||Sedan||Sedan||N/A||Sedan|
|Automatic w/OD||Automatic w/Manual Shift||Continuously Variable Ratio||Automatic w/Manual Shift||N/A||Automatic w/Manual Shift|