I live in northern Canada (cold, ice & snow). I use the primacys for summer and use the Michelin x-ice for winter on my ES350. Best winter tire I have ever used, both for ice, snow and dry pavement. Appears to be long wearing as well but I don't drive as aggressively as you do. Very low noise which is usually hard to achieve in a winter tire. Google PMC Tire evaluation and you will find a summer chart and a winter chart. I haven't tried the primacys in winter but from the above charts they are just marginally better in winter compared to the rest. Tire rack also has an excellent chart. see below.