The 2022 Acura MDX is all-new and loaded with an exciting array of features. The 2021 Acura RDX also boasts lots of upgrades and a new trim level. We compare the features and performance of these luxury SUVs. A V6 engine powers the 2022 MDX, pushing out 290 HP and 267 LB-FT of torque. Upgrading to the Type S, you'll get a turbocharged 3.0L V6 engine that delivers 355 HP and 354 LB-FT of peak torque. This high-output powertrain has a towing rating of 5,000 pounds. The RDX offers the same engine for all trim levels, a 2.0L four-cylinder turbo. It has a rating of 272 HP, and it reaches 280 LB-FT in torque.