Lambdas use unique tire size (both 18 and 19 inch wheels). 255/60R19 you have choice of two tires - both all-season - one is Good Year RSA, the other one is Michelin Latitude Tour. Check this link out.
18 inchers are worse - just one choice
Hopefully other tire manufacturers will catch up soon. (Lambdas are supposed to be popular vehicle - right?)