BlueBel said:
I only had a 15 minute test drive, but I’ve never driven a car that sticks to the road like this one. I was wondering if it’s the car or the summer tires. When you switched to the all season Michelin’s, did it still have that same stick to the road feel? I may have mentioned this earlier, I’ve never driven a car with summer tires, that’s why I ask. My plan is since warm weather is right around the corner, leave the OEM summer tires on till November then get a set of the Michelin’s since I’ve read great things about them. I also see some arguments about getting dedicated winter tires. But the winters in NJ are not extreme.
Tires are the only part of the vehicle that is in contact with the road. They are the determining factor in cornering grip and stopping distance. Once you slam on your brakes, you're relying on your tires grip to stop your vehicle. 1' of stopping distance can be the difference between a butt-pucker moment and automotive buttsex. Aftermarket suspension mods can help (firmer / lower springs help reduce weight distribution in corners), but the limit to traction lies on the tires. Aftermarket brakes can help (better pads / fluid can reduce brake fade), but once the brakes lock-up, the only thing that's stopping the vehicle is the tire compound.
There are different levels of winter tires:
1) Performance winter tires are built with a compound designed for dry tarmac traction in colder temperatures at the expense of snow/ice traction vs studless snow tires.
2) Studless winter tires will give up some dry tarmac traction for increased snow / ice traction vs performance winters
3) Studded winter tires will give up some dry tarmac traction for increased snow / ice traction vs studless winter tires
A performance winter tire will have superior dry / snow / ice traction vs a performance all-season tire.
A studless winter tire might give up some slight dry traction vs a performance all-season, but will have significantly better snow / ice traction. Compared to a regular A/S tire, I would give the dry traction grip to the snow tire, assuming you bought a good one.
A studded winter tire will certainly give up dry traction vs a performance all-season, but will have night / day better traction in snow / ice conditions.
As far as summer tire vs performance all-season, I can tell differences in summer tires with cornering grip. I can take a familiar highway sweeping offramp (30MPH rec speed) at the limit 2-3MPH faster with my Michelin Pilot Super Sports than I could with the previous Cooper RS3-Ss (both "Max Performance Summer" tires, same size, same modifications, same alignment, etc.). The only difference to my vehicle is the tire compound and tread. This isn't an issue with familiarity with the corner or my vehicle (same exit for 15 years, same car for 11 years). I would expect a performance all-season tire to be in the 4-5MPH slower range vs my MPSSs.
The only time the A/S tire may be better is when your temperatures fluctuates around 40°; the winter compound gets a bit greasy and the summer compound gets a bit "hockey puck". There's always that one-month window of "do I swap?" that you experience in the spring / fall, but the other 10 months of the year, a dedicated set will be superior.
Living in NJ, I recommend either performance / studless winter tires. Studded winter tires are completely unnecessary for you.
WRX John said:
I will exceed 1.0G regularly (and comfortably) in my Z06 on the track, but on even deserted curvy country roads, .90G is where I am comfortable (same car, but different location/circumstances).
Meticulously maintained tarmac vs ???
An unexpected imperfection (e.g., pothole, undulation, sand, etc.) in the road mid-corner can spell disaster.