The standard features of the Mercedes-Benz SLK300 Base include 3.0L V-6 228HP engine, 6-speed manual transmission with overdrive, 4-wheel anti-lock brakes (ABS), side seat mounted airbags, driver and passenger side airbag head extension, driver and passenger knee airbag, airbag occupancy sensor, BabySmart airbag childseat sensor, Thermatic air conditioning, 17" alloy wheels, cruise control, ABS and driveline traction control, and a stability control.