For 2021, the X5's xDrive50i model has been replaced by the plug-in hybrid xDrive45e. The new plug-in hybrid powertrain consists of a turbocharged 3.0-liter inline-six and an electric motor for a total output of 389 horsepower. A 24.0-kWh battery pack is said to provide up to 30 miles of electric-only driving range. The regular 40i models also receive some light electrification in the form of a 48-volt hybrid system.
Pros Wide range of available engines, high-quality cabin materials, intuitive infotainment interface.
Cons Somewhat vague steering feel, tight third-row passenger space, V-8 performance costs a lot extra.
The xDrive45e plug-in hybrid model debuts.Last year's xDrive50i is discontinued.Android Auto is now standard.Minor feature changes.
Pros Strong performance from available engines Luxurious, comfortable cabin lives up to its price tag Spacious cabin and cargo area
Cons Small mirrors and wide roof pillars create blind spots Limited interior storage Wide doorsills inhibit entry and exit
No significant changes for 2021.
Pros Turbocharged 500-hp V8 moves the SQ8 with authority Four-wheel steering keeps the big SUV feeling nimble Surprisingly comfortable given its performance bent Stylish, distinctive exterior
Cons Infotainment system can be distracting to use Driver's seat has few adjustments Limited interior storage
For its sophomore year, the SQ8 soldiers on with only one change: It now comes standard with a built-in toll-road-payment transmission feature.Upgrading to the Prestige trim costs $5500 but adds a host of driver-assistance and luxury features, such as adaptive cruise control, lane-keeping assist, a head-up display with navigation guidance, fancier LED exterior lighting elements, soft-close doors, headlamp washers, heated rear seats, and power rear sunshades. If none of that sounds particularly important to you, save the cash and go with the Premium Plus. All SQ8 models come with the best performance-enhancing features Audi can throw at them, so no matter which one you choose, you're getting the same driving experience.
PROS Powerful V-8 engine, high-quality interior trimmings, aggressive exterior design.
CONS Some may regret not going with the RS Q8, braking performance could be better, thirsty powertrain.
Pros Sports-car fast Posh and spacious interior Plenty of infotainment tech
Cons Alternatives are more fun to drive Cheaper Q8 50TDI makes more sense Petrol-powered alternatives are more dramatic
