Tribute to Jo Siffert by Warson Motors! The Holy Grail in Formula 1, the HATTRICK (pole position, fastest lap and fastest race time). Jo Siffert achieved this in 1971 at the Austrian Grand Prix in Zeltweg with his BRM P160. The design of the T-shirt, with printed racing stripes on the arms and badges in the original vintage look of the 1970s, is in a class of its own.