I have a 2015 TLX V6 with the stock 225/50/18 tires on. I was thinking about switching to the Continental DWS 06 since they seem pretty popular. Looking to go to a 235/40/18 tire. Anyone know how this would affect the speedometer readings at all? I’m more worried about putting more miles on my car than I actually have than I am the actual speedo reading. What about a 235/45/18?