215/45 R17 vs 235/35 R19

Plus-sizing from 215/45 R17 to 235/35 R19 keeps overall diameter close to factory while opening room for a larger 19-inch wheel. This wheel and tire pairing swings rolling diameter far enough to feel on the road.

The speedometer error is noticeable and may warrant a recalibration if you rely on indicated speed. Expect a more planted steering feel, at the cost of some of the cushioning a taller sidewall provides. The wider section adds contact patch and lateral stability, while eating into fender and suspension clearance. Visually, the bigger wheel fills the arch and gives the car a more aggressive stance. Diameter delta falls in the cautious 3–5% range, where speedometer recalibration and a careful clearance check are worth doing.