My 2019 Standard Range Plus Model 3 goals: low rolling resistance tires - Bridgestone Ecopia reduced profile drag - smaller tire cross section lighter weight - reduce tire rolling drag from weight and improve range staggered tires - slower turning rear wheels (aka., BMW i3-REx style tires) I ordered a pair of Bridgestone 225/55R18 only to discover they won't fit in the front wheel due to the king pin. But they fit fine in the rear and the Michelin 235/45R18 were put on the front. The car operated fine with no abnormal handling. So I ordered the 225/45R18 for the front with the 225/55R18 on the rear only to discover regeneration no longer works at speeds above 25 mph. Handling was fine but loss of regeneration makes the car impractical. I'm waiting on a pair of 235/45R18, 791 rev/mi., for the front which given testing earlier Michelin 235/45R18, 790 rev/mi., should work fine. This will allow test configurations with lower and faster tire rev/mi. Using GPS calibration, we'll find out which is most efficient. Bob Wilson
