The Q3 is positioned as the smaller, punchier choice. It uses a turbocharged 2.0-litre four-cylinder with up to 273 lb-ft of torque and 255 hp, paired with a 7-speed transmission and standard quattro all-wheel drive. That combo usually feels eager in city gaps and confident when roads get slick.

The RX 350 is stronger on paper, and it shows in the torque figure. Lexus Canada describes the RX 350 as a 2.4-litre turbocharged four-cylinder engine with 275 hp and up to 317 lb-ft of torque, paired with an 8-speed automatic transmission. It is built to feel smooth and effortless, not edgy. If your driving is mostly commuting, school runs, and highway cruising, the RX’s calm power delivery is a big part of the appeal.

Which feels “sportier”?
The Q3 tends to win that conversation because it is smaller, easier to place, and set up like a compact luxury SUV that wants to feel quick and tidy. The RX 350 feels more like a quiet lounge that happens to move with authority.

Both are strong, but they approach it differently.

Audi highlights a modern dual-screen layout (driver display + centre touch display) and mentions features such as wireless Apple CarPlay and Android Auto, as well as available premium audio. There’s also reporting that the 2026 Q3’s move to a single trim level includes larger screens and more standard tech. 

Lexus is very clear about the RX 350’s tech package in Canada: it lists a 9.8-inch Lexus Interface with Safety Connect, along with an optional 14-inch touchscreen, a 12.3-inch multi-information display, a wireless charger, and smartphone integration. 

If screens matter a lot, RX is easier to shop for because Lexus clearly spells out the sizes and the “available 14-inch” upgrade in the Canadian listing.

Lexus provides Canadian fuel-efficiency estimates for the RX 350 on the overview page: 11.2 L/100 km city and 8.4 L/100 km highway. That gives you a clear expectation before you buy.

For the Audi Q3, fuel economy varies by market and final spec. If fuel costs are a major deciding factor, it’s worth checking your local Audi build-and-price or the official fuel guide in your country for the final L/100 km rating.

If you want the more practical luxury daily driver, the RX 350 usually wins because it’s bigger, more relaxed, and has the kind of cargo room and comfort that makes life easier.

 If you want a more compact, sporty premium SUV that feels nimble and confident, the Q3 makes a strong case with its turbo power, standard AWD, and tech-forward cockpit.