If you are not interested in maintaining your TPMS, the absolute cheapest way to buy a wheel/tire package from Discount Tire is to do it on-line at Discount Tire Direct. The tires will be mounted and balanced for FREE...and then shipped to your door for FREE. And yes...you still get all the same rebates and promotions!
They will even install new TPMS sensors in the wheels if you want them (and they are reasonable). But you'll have to fork over $100 for your dealer to program them to your car's computer. We still don't have an aftermarket solution for doing this on a Mirage, but I'm still talking to a manufacturer from China who is working on solving the mystery of the Mirage's TPMS system.
View my fuel log 2015 Mirage ES 1.2 manual: 51.4 mpg (US) ... 21.8 km/L ... 4.6 L/100 km ... 61.7 mpg (Imp)