I agree with CapriRacer's post.
If this helps just a little bit, here is some information that I received on page 5 of a recent Tire Rack Catalog. It is titled;
PERFORMANCE, TOURING AND PASSENGER TIRES
"If you are looking for tires that will help your car handle better, ride quieter or[tires that] last longer, you'll want performance, touring or passenger tires".
EXTREME PERFORMANCE(SUMMER ONLY)
These trade some comfort, tread depth and hydroplaning resistance to deliver dry road response, traction and handling for serious driving enthusiasts.
MAX PERFORMANCE(SUMMER ONLY)
Technologically advanced tires that provide superior dry and wet traction, handling and high-speed capabilities.
ULTRA HIGH PERFORMANCE(SUMMER OR ALL-SEASON)
Low profile tires designed to provide high-speed capabilities and quick steering response along with stable cornering and traction on dry and wet roads.
HIGH PERFORMANCE(SUMMER OR ALL-SEASON)
Designed to provide crisp steering response and predictable handling for both wet and dry conditions.
PERFORMANCE ALL-SEASON
Used to replace standard Passenger All-Season tires and to upgrade your vehicle's looks and handling.
GRAND TOURING9SUMMER OR ALL-SEASON)
Designed to blend much of a performance tire's bold appearance and responsive handling with a passenger tire's smooth, quiet ride.
STANDARD TOURING ALL-SEASON
Typically available in lower speed ratings and taller aspect ratio sizes than Grand Touring tires with more emphasis placed on ride comfort and treadwear.
PASSENGER ALL-SEASON
Designed to emphasize long wear, a plush quiet ride, pridictable handling, relatively low cost and year-round traction even in light snow, but won't match the steering response of performance or touring tires.
Hope this helps!
CB