This legal identifier is in the front corner of the instrument panel, on the driver side. It can be seen through the windshield from outside. The VIN also appears on the Vehicle Certification and Service Parts labels and certificates of title and registration.
Engine Identification
The eighth character in the VIN is the engine code.
This code identifies the vehicle's engine, specifications, and replacement parts. See “Engine Specifications” under Capacities and Specifications for the vehicle's engine code.
Chevrolet Cobalt Owners Manual. Winter Tires
If the vehicle has 225/40R18 size tires, they are
classified as performance tires. These tires are
designed for very responsive driving on wet or dry
pavement. If you expect to drive on snow or ice
covered roads often, you may want to get winter tires
for the vehicle. All season tires provide g ...