Question: Which compact luxury crossover SUV is the new BMW X2 modeled after?

Context paragraphs:
Acura RDX: The Acura RDX is Acura’s first compact luxury crossover SUV, taking over from the MDX as Acura's entry-level crossover SUV, as the MDX grew in size and price.

BMW X3: The BMW X3 is a compact luxury crossover SUV manufactured by German automaker BMW since 2003.  Based on the BMW 3 Series platform, and now in its third generation, BMW markets the crossover as a "Sports Activity Vehicle", the company's proprietary descriptor for its X-line of vehicles.  The first generation X3 was designed by BMW in conjunction with Magna Steyr of Graz, Austria—who also manufactured all X3s under contract to BMW.  BMW manufactures the second generation X3 at their Spartanburg plant in South Carolina, United States.

Borgward BX7: The Borgward BX7 is a Sino-German compact luxury crossover SUV manufactured by Borgward.  It is the first model of the newly resurrected Borgward company, which made its return after a 54-year hiatus at the 2015 Geneva Motor Show.  Developed with the help of Chinese truck manufacturer Foton, the BX7 is Borgward's first entry into the SUV market.  It was first unveiled to the public at the 2015 International Motor Show in Frankfurt, Germany.

BMW X5 (E70): The BMW E70 is second-generation BMW X5 mid-size luxury crossover SUV.  It replaced the BMW X5 (E53) in November 2006.  It is manufactured alongside the new, 2009 BMW X6 at BMW's Greer, South Carolina plant in the U.S. and BMW's facility in Toluca, Mexico.

Hyundai Santa Fe: The Hyundai Santa Fe (Korean: 현대 싼타페 ) is a sport utility vehicle (SUV) produced by the South Korean manufacturer Hyundai since 2000.  It is named after the city of Santa Fe, New Mexico, and was introduced for the 2001 model year as Hyundai's first SUV, released at the same time as the Ford Escape and Pontiac Aztek.  The Santa Fe was a milestone in the company's restructuring program of the late 1990s because, despite receiving criticism from journalists for its obscure looks, the SUV was a hit with American buyers.  The SUV was so popular that at times, Hyundai had trouble supplying the demand.  The Santa Fe quickly became Hyundai's best seller and contributed to Hyundai's success in the United States.  As of 2007, the Santa Fe falls between the slightly smaller compact crossover Tucson and the larger, yet related luxury crossover SUV Veracruz (which replaced the Terracan).

BMW X1: The BMW X1 is a compact luxury crossover SUV manufactured and marketed worldwide by BMW since 2009.  The first generation model, based on the BMW 3 Series, was available with rear-wheel-drive ("sDrive") and all-wheel-drive ("xDrive") configurations.  The second generation, based on BMW's compact UKL platform, is available with front-wheel-drive ("sDrive") and all-wheel-drive ("xDrive").

BMW X4: The BMW X4 is a compact luxury crossover SUV introduced in 2014, manufactured by the German automaker BMW at its United States factory in South Carolina.

BMW X2: The BMW X2 is a future compact SUV, announced by German car manufacturer BMW.  It is expected to be released in 2017 as an additional model to the BMW X1.

Infiniti QX50: The Infiniti QX50 is a Compact luxury crossover SUV, successor of Infiniti EX.

Infiniti EX: The Infiniti EX is a Compact luxury crossover SUV.  It is based on the FM platform shared with the Infiniti G, M, and FX.

Supporting paragraphs: BMW X2 BMW X1
Answer: BMW X1