A word about low aspect ratio and high performance tires High performance tires are designed for better performance and handling in warm climates. (audiusa.com)
Performance tires are designed for enhanced handling and generally have high speed ratings and low aspect ratio for improved control. (buick.com)
The 21 - inch upgrade lowers the aspect ratio to 30 but all - season tires are not an option in either case. (autoweek.com)