The BMW X3 has 1 Diesel Engine . The Diesel engine is 1995 cc . It is available with the Automatic transmission. Depending upon the variant and fuel type the X3 has a mileage of 13.32 to 18.56 kmpl. The X3 is a 5 seater SUV and has a length of 4708mm, width of 1891mm and a wheelbase of 2864mm.