The Opel Corsa has been one of the best-selling small cars in Germany since its launch 33 years ago. It’s now in its fifth generation, with a souped-up design and extensive equipment. The new Corsa also enjoys a range of assists normally seen in superior classes of car.Among the optional extras are traffic sign recognition, distance indicator and collision warning, lane departure alert and a blind-spot detector. We check out the new 1 liter 3-cylinder turbo gasoline version, which is both surprisingly quiet but also pretty zippy.