quipped "Well, it's got some poke! Not a bad old tool." After teammates Jim Clark and Mike Spence were killed in early 1968, Hill led the team, and won his second world championship in 1968. The Lotus had a reputation of being very fragile and dangerous at that time, especially with the new aerodynamic aids which caused similar crashes of Hill and Jochen Rindt at the 1969 Spanish Grand Prix. A crash at the 1969 United States Grand Prix at Watkins Glen broke both his legs and interrupted his career. Typically, when asked soon after the crash if he wanted to pass on a message to his wife, Hill replied "Just tell her that I won't be dancing for two weeks." Upon recovery Hill continued to race in F1 for several more years, but never again with the same level of success. Colin Chapman, believing Hill was a spent force, placed him in Rob Walker's team for 1970, sweetening the deal with one of the brand-new Lotus 72 cars. Although Hill scored points in 1970 he started the season far from fully fit and the 72 was not fully developed until late in the season. Hill moved to Brabham for 1971–2; his last win in Formula One was in the non-Championship International Trophy at Silverstone in 1971 with the "lobster claw" Brabham. The team was in flux after the retirements of Sir Jack Brabham and then Ron Tauranac's sale to Bernie Ecclestone; Hill did not settle there. Hill was known during the latter part of his career for his wit and became a popular personality – he was a regular guest on television and wrote a notably frank and witty autobiography, Life at the Limit, when recovering from his 1969 accident. A second autobiography, which covered his career up until his retirement from racing simply called Graham was published posthumously in 1976. A staunch campaigner for road safety, Hill presented a series for Thames Television entitled Advanced Driving with Graham Hill comprising six 30-minute programmes broadcast weekly in June and July 1974. A book accompanying the series giving advice on safer and responsible driving was co-written by him. Hill was also irreverently immortalized on a Monty Python episode ("It's the Arts (or: Intermission)" sketch called "Historical Impersonations"), in which a Gumby appears asking to "see John the Baptist's impersonation of Graham Hill." The head of St. John the Baptist appears