IRON CAR professionals face the final diagnostic test. The challenge, a Citroën XM, we tested Opel's ON STAR system, the most advanced driving assistance system on the Spanish market. We go to Pamplona to visit the factory and the Road House R&D center where their brake pads are manufactured. And finally, we return to Italy to thoroughly test the Lamborghini Aventador SV, an outstanding test.
—On Motor