Ive got a 2001 X5 3.0 with the stock 18in basic wheels. Ive picked up a chrome set of bmw 20in wheels. the question is about the tire size. If you set the front wheels next to the rears you can see that the front are taller. The tire sizes are fronts 275/45 R20 and the rears are 295/40 R20. Even though they came off of a newer (not sure yr) X5 Im not comfortable putting these on due to the difference. Thanks in advance for the advise.

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2001 X5 3.0l