the f48 x1 is the second- and current-generation model. it is built upon the front-wheel drive based ukl2 platform, and is available in long-wheelbase and long-wheelbase hybrid variants in china. the range consists of turbocharged 3-cylinder and 4-cylinder petrol and diesel engine options. base models are front-wheel drive (branded as sdrive), with all-wheel drive (xdrive) available as an option and is standard for some higher-end models.