I got staggered 20" TSW Bathurst Rotary Forged wheels (F: 9"/R: 10") with Conti DW 245/275 tires. Very lightweight, approximately 8 lbs per wheel lighter than the stock 19"s, and close to 12lbs per wheel lighter than the stock 21's. Car handles far better than the stock 19's and still is very comfortable in terms of ride, and quietness. In terms of efficiency, its very close to the stock 19" Primacy. Perhaps slightly better if any different, but definitely not worse.
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