The BMW 3-Series is down on power to the Infiniti and isn't what it used to be, but it's still the Q50's dynamic superior, with a more charming, involving driving character.
The Lexus IS is a different take on aggressive styling, ditching the Q50's refinement for in-your-face aesthetics and a stylish cabin.
The best interior in the segment and inarguably the most luxurious model, the Mercedes-Benz C-Class is pricey but worth every penny.
The Audi A4 is one of the segment's few vehicles to surpass the Q50's tech, offering up an all-digital display and impressive driver assistance features.
The Alfa Romeo Giulia is the best driver's car in the class and is every bit as pretty as the Q50, but it's also the best driver's car in the class.
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 2018 INFINITI Q50Browse Used Listings |  2018 Audi A4Browse Used Listings |  2018 BMW 3-SeriesBrowse Used Listings |  2018 Lexus ISBrowse Used Listings |  2018 Mercedes-Benz C ClassBrowse Used Listings |  2018 Alfa Romeo GiuliaBrowse Used Listings |
|---|---|---|---|---|---|
| Quick Specs | |||||
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The 2018 Infiniti Q50 is powerful, well-equipped luxury sedan that doesn't quite match up to Germany's finest yet. |
The 2018 Audi S4 balances perfectly performance with luxury in a package that's both practical and sharp. Hardly a recipe for excitement, but one that touches all the bases. |
The 2018 BMW 3-Series makes its strongest case in performance for luxury compact buyers’ attentions. |
The Lexus IS needs more powertrain guts, and more styling glory, to tackle the cars it wants to take down. |
Very expensive and still not very large, the 2018 Mercedes-Benz C-Class nonetheless leads its luxury niche with fabulous style and fantastic power and grip. |
The 2018 Alfa Romeo Giulia presents plenty of compelling reasons to jump ship from the “default” sports sedan brands. |
| MSRP From | |||||
| $35,200 | $36,000 | $34,900 | $38,210 | $40,250 | $38,195 |
| Gas Mileage | |||||
| 19 MPG City / 32 MPG Hwy | 21 MPG City / 37 MPG Hwy | 16 MPG City / 43 MPG Hwy | 19 MPG City / 32 MPG Hwy | 17 MPG City / 33 MPG Hwy | 17 MPG City / 33 MPG Hwy |
| Engine | |||||
| Intercooled Turbo Premium Unleaded I-4 | Intercooled Turbo Premium Unleaded I-4 | Intercooled Turbo Premium Unleaded I-4 | Intercooled Turbo Premium Unleaded I-4 | Intercooled Turbo Premium Unleaded I-4 | Intercooled Turbo Premium Unleaded I-4 |
| EPA Class | |||||
| Midsize Cars | Compact Cars | Compact Cars | Compact Cars | Compact Cars | Midsize Cars |
| Style Name | |||||
| 2.0t PURE RWD | 2.0 TFSI ultra Premium S Tronic FWD | 320i Sedan South Africa | IS 300 F Sport RWD | C 300 Sedan | RWD |
| Drivetrain | |||||
| Rear Wheel Drive | Front Wheel Drive | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive | Rear Wheel Drive |
| Passenger Capacity | |||||
| 5 | 5 | 5 | 5 | 5 | 5 |
| Passenger Doors | |||||
| N/A | N/A | N/A | N/A | N/A | N/A |
| Body Style | |||||
| Sedan | Sedan | Sedan | Sedan | Sedan | Sedan |
| Transmission | |||||
| Automatic w/OD | Auto-Shift Manual w/OD | Automatic w/OD | Automatic w/OD | Automatic w/OD | Automatic w/OD |
| Detailed Spec Comparison | |||||
| 2018 INFINITI Q50 vs. 2018 Audi A4 | 2018 INFINITI Q50 vs. 2018 BMW 3-Series | 2018 INFINITI Q50 vs. 2018 Lexus IS | 2018 INFINITI Q50 vs. 2018 Mercedes-Benz C Class | 2018 INFINITI Q50 vs. 2018 Alfa Romeo Giulia | |
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