On 18 January 2008, Büchel won a World Cup Super-G race at Kitzbühel, and set a then record as the oldest winner of a World Cup race at the age of 700136000000000000036 years, 700175000000000000075 days. This has since been surpassed by Didier Cuche, who won a downhill race at the same location on 22 January 2011.
Büchel is featured in the OL-floka music video for the 1994 Winter Olympics. He's seen climbing upwards the combined slalom course, after missing a gate.
Büchel retired following the Super-G race at Garmisch-Partenkirchen (Germany) on 11 March 2010. He celebrated his last race by racing not in the regular catsuit but by wearing a tuxedo with black Bermuda shorts. As he skied down the course, Büchel slowed down many times to "high-five" various trainers.
He had also appeared on the Amazing Race 18 as contestants had to give him the correct answer for calculating the Length of Liechtenstein.
During his retirement, Büchel frequents South Florida, where he has many American friends.