For enhanced safety, the front seat shoulder belts of the Chevrolet Sonic are height-adjustable to accommodate a wide variety of driver and passenger heights. A better fit can prevent injuries and the increased comfort also encourages passengers to buckle up. The MINI Cooper Hardtop 4 Door doesn’t offer height-adjustable seat belts.
The Sonic LT/Premier’s optional lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane. The Cooper Hardtop 4 Door doesn’t offer a lane departure warning system.
The Sonic’s blind spot mirrors use wide-angle convex mirrors mounted in the corner of each side view mirror to reveal objects that may be in the driver’s blind spots. The Cooper Hardtop 4 Door doesn’t offer a system to reveal objects in the driver’s blind spots.
Both the Sonic and the Cooper Hardtop 4 Door have standard driver and passenger frontal airbags, front side-impact airbags, driver and front passenger knee airbags, side-impact head airbags, front seatbelt pretensioners, front-wheel drive, plastic fuel tanks, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, rearview cameras, available collision warning systems and rear parking sensors.
For its top level performance in all IIHS frontal, side, rear impact and roof-crush tests, and with its optional front crash prevention system, the Insurance Institute for Highway Safety grants the Sonic the rating of “Top Pick” for 2016, a rating granted to only 145 vehicles tested by the IIHS. The Cooper Hardtop 4 Door has not been tested, yet.

