Spears CARS Tour Southwest PLM race: 1 of 10 Track: Tucson Speedway Location: Tucson, Ariz. Length: .375 mile Laps: 125 (PLM) Broadcast: FloRacing - 4 p.m. MST (6 p.m. EST) The Spears CARS Tour West, the premier stock car series of the West Coast, opens its 10-race Southwest Pro Late Model season by making its series debut at the historic Tucson Speedway with the SoundGear 125 this Saturday, Jan. 17, as part of 13 th annual Chilly Willy weekend. The SoundGear 125 — which will