the importance of the right tires for the season, as evidenced by the only tests I've come across that thoroughly real world compares summer, winter, and all season tires with braking AND acceleration

The right tires allow you to accelerate more quickly, change direction faster, and, most important, stop shorter.

And when they're the difference between hitting something and avoiding it, the right tires save sheetmetal, money, and, potentially, lives.

Automobile magazine used a 2012 Dodge Charger with all-season, winter, and summer tires and performed panic-stop tests on both a snow-packed surface and a warm, dry road with Pirelli PZero summer tires, Continental ExtremeContact DWS all-seasons, and Bridgestone Blizzak DM-V1

Plus they tested for winter results in the yoop, at Michigan Technological University's Keweenaw Research Center.


Winter Bridgestone Blizzak DM-V1 235/55RR-18
Tire Rack price per tire: $162
Packed snow @ 30 mph 74 ft
Dry road @ 70 mph (37 mph) 205 ft

Summer Pirelli PZero 245/45YR-20
Tire Rack price per tire: $195
Packed snow @ 30 mph (still going 26 mph) 332 ft
Dry road @ 70 mph 149 ft

All-season Continental ExtremeContact DWS 245/45WR-20
Tire Rack price per tire: $267
Packed snow @ 30 mph (20 mph) 135 ft
Dry road @ 70 mph (22 mph) 167 ft

The stopping distance of the all-season Continentals is nearly double the distance of the Blizzaks. Even more indicative of the possible consequences: at the point where the winter tires stopped, the Charger is still traveling 20 mph with the all-season tires.

The PZero summer tires record the shortest distance at 149 feet, and the winter tires need the most room to stop -- an extra 56 feet. The all-season Continentals are no slouch at 167 feet, but there's no question that they're compromised. Using the summer tires could be the difference between stopping before a collision takes place and hitting something at 22 mph.

https://www.automobilemag.com/news/rubber-matter-tires-test/