While there are no major changes for the 2021 model year, the Blazer midsize SUV continues to offer a selection of three engines, starting with a naturally aspirated four-cylinder rated at 193 horsepower. This one exclusively comes with front-wheel drive. All-wheel drive is optional with the turbocharged four-cylinder engine (230 hp) and standard with the larger V6 (308 hp). All Blazer models are mated to a nine-speed automatic transmission.