Posted By danderso on 28 Jan 2015 03:02 PM
By the way I am defining cold weather as below 60 degrees ambient in this area.
Using your definition of cold weather, the Detroit area gets cold weather from September through May. I autocrossed on Falken Azenis RT615K tires for two autocross seasons. These tires have tremendous grip, but only in a narrow tread temperature range. During some events in April and October, I couldn't get the tires warm enough even with "hot lapping" that's allowed by some Detroit area clubs. During July and August, I had to use a water sprayer to cool the tires after each run.
Use the tires for generating big grins when the weather is warm, big spins when the weather is cold, but not for winning big trophies.