The Volvo S90 and V90 typically compete against luxury mid-size cars from Germany that include the Audi A6, BMW 5-Series, and Mercedes-Benz E Class.
All three offer more powertrain configurations, but only the BMW offers a plug-in hybrid, like the S90 T8.
The Merc is loaded with tech, and the Audi A6 is conservative and straightforward with the glaring exception of the sizzling RS6 Avant wagon.
The Cadillac CT6 and Acura RLX are both refined, but they’re also lame ducks–neither will carry over into the new model year.
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 2021 Volvo S90#5 in Luxury Large Cars Get Your Price |  2021 Audi A6Get Your Price |  2021 BMW 5-Series#8 in Luxury Mid-Size Cars Get Your Price |  2021 Mercedes-Benz E Class#1 in Coupes Get Your Price |  2020 Acura RLX#18 in Luxury Mid-Size Cars |  2020 Cadillac CT6#13 in Luxury Large Cars |
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| Quick Specs | |||||
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The 2021 Volvo S90 and V90 argue for luxury-car status with rational performance and style. |
The 2021 Audi A6 mid-size luxury sedan or wagon is reserved but flexible in its powertrain offerings and body styles. |
The 2021 BMW 5-Series pushes all the right buttons for mid-size luxury shoppers. And there are a lot of them. |
Made as a sedan, wagon, coupe, and convertible with four different powertrains, the 2021 Mercedes E-Class has wide appeal. |
The 2020 Acura RLX’s familiar shape hides a forward-thinking powertrain. |
In its final year, the 2020 Cadillac CT6 is a tempting look at what could have been from the luxury brand. |
| MSRP From | |||||
| $51,550 | $54,900 | $54,200 | $54,250 | $54,900 | $58,995 |
| Gas Mileage | |||||
| 21 MPG City / 32 MPG Hwy | 15 MPG City / 31 MPG Hwy | 15 MPG City / 33 MPG Hwy | 16 MPG City / 31 MPG Hwy | 20 MPG City / 29 MPG Hwy | 14 MPG City / 27 MPG Hwy |
| Engine | |||||
| Turbo/Supercharger Premium Unleaded I-4 | Intercooled Turbo Gas/Electric I-4 | Intercooled Turbo Premium Unleaded I-4 | Intercooled Turbo Premium Unleaded I-4 | Premium Unleaded V-6 | Gas V6 |
| EPA Class | |||||
| Midsize Cars | Midsize Cars | Midsize Cars | Midsize Cars | Mid-Size Cars | Large Cars |
| Style Name | |||||
| T6 AWD Momentum | Premium Plus 45 TFSI quattro | 530i Sedan | E 350 RWD Sedan | Sedan w/Technology Pkg | 4-Door Sedan 3.6L Luxury |
| Drivetrain | |||||
| All Wheel | All Wheel | Rear Wheel Drive | Rear Wheel Drive | Front Wheel Drive | All Wheel Drive |
| Passenger Capacity | |||||
| 5 | 5 | 5 | 5 | 5 | 5 |
| Passenger Doors | |||||
| N/A | N/A | N/A | N/A | N/A | 4 |
| Body Style | |||||
| Sedan | quattro Sedan | Sedan | Sedan | Sedan | Sedan |
| Transmission | |||||
| Automatic w/OD | Auto-Shift Manual w/OD | Automatic w/OD | Automatic w/OD | Automatic w/OD | Automatic |
| Detailed Spec Comparison | |||||
| 2021 Volvo S90 vs. 2021 Audi A6 | 2021 Volvo S90 vs. 2021 BMW 5-Series | 2021 Volvo S90 vs. 2021 Mercedes-Benz E Class | 2021 Volvo S90 vs. 2020 Acura RLX | 2021 Volvo S90 vs. 2020 Cadillac CT6 | |
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