if you live in the toronto urban area won't most of your driving be on cleared but wet roads? even here in vermont most of the winter paved road driving is cleared and wet. x-ice is pretty blocky; more resistance to wind and road. thinking here of the alpin 5, 245/45r19 front, 245/50r19 rear, on fast wheels EVO1(+) https://tinyurl.com/y6so3fy3
Interested in what others think....my research on MY performance suggests 255-45-R19 is the way to go. Car came with 21 Uberturbine. No way using those in winter. Prefer more sidewall for Toronto and rural potholes And definitely Hakka R3s. Getting confirmation on TPMS, local tech suggested standard, but hearing something about Bluetooth version? Looking for suggestions on wheels as well. Read about a company in Quebec making Tesla spec wheels a while back....trying to find them for the 19 inch winter beaters.