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e90 xi handling performance
I don't have a lot of experience to offer comparisons, but my used 2007 328 xi came with the St-X coil-over suspension (set very low). I just got back from a 20,000 km road trip through the west and had good snow performance with mid-grade snow tires. I will be raising the car this summer to "sport" height.
I think the ST-X (same as the KV-1 except galvanized steel) is a great trade off for a daily/long distance cruiser. My friend thinks it handles close to his E-46 ZHP, but with a little more weight. I ran 18" snows and now run 17x8" Continental DWS Plus in the summer. I will be rebuilding the suspension and having the shocks rebuilt this summer (although it still handles very well).
Based on the drivers manual, the 335xi is 232lbs heavier than the 328xi sedan in 2007. Lower horsepower can be mitigated by reduced rotating mass (wheels and tires).
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