Someone was asking me the other day about the stock SL and Base wheel offsets. Here is the info.
Front Wheels 18X7.5 with +42mm Offset / 43.5 lbs with tires
Rear Wheel 20X9 with +45mm Offset / 53 lbs with tires
The SL's premium wheels are wrapped with 225/45R18 up front and 255/35R20 in the rear.
Front Wheels 17X7 with +42mm Offset
Rear Wheel 18X9.5 with +45mm Offset
The Base gets 205/50R17 up front and 265/35R18 in the rear.
Lug nut Pattern is 5X114.3 for both
Front Tire Size 225 / 45R18
Front Tire Type Kenda SS-799
Front Wheel Size 18x7.5 J
Front Wheel Type Forged Aluminum
Rear Tire Size 305 / 30R20
Rear Tire Type Kenda SS-799
Rear Wheel Size 20x11.0 J
Rear Wheel Type Forged Aluminum