The Acura RDX is the brand's highest-volume vehicle and the model that introduced Acura's True Touchpad Interface — a feature that polarizes reviews but rewards regular users. The turbocharged 2.0L four-cylinder makes 272 horsepower. Available SH-AWD adds the torque-vectoring rear differential that's standard on the MDX. At Jeff Wyler Acura of Dayton, we carry the RDX in Base, Technology, A-Spec, A-Spec Advance, and Advance trims. The A-Spec adds sharper styling; the Advance brings the full driver assistance and audio package. If you're cross-shopping with the BMW X3 or Audi Q5, come in and compare — the RDX's SH-AWD and turbo powertrain offer more at a lower price than most German competitors.