This week's pre-season test at Portimao started late in the evening and until 10pm local time, with Dennis Olsen ending the test sessions fastest for the SSR Porsche team.
Although the schedule was not by design but circumstances, as the DTM needed extra time in daylight to set up TV cameras after last weekend's MotoGP race at the Portuguese venue, it has led to suggestions that the championship should consider a return of night races in the near future.
