I'll be 80 in October and still drive and maintain my 40' Camelot without issue. Lost my passenger seat occupier several years ago but Charlie the Beagle is excellent company but he has problems with maps. I have 5 heart stents and received a new hip last year. After two hip dislocations and a total revision I'm back in the saddle again doing 350-400 miles per day. I hit the gym every other day which keeps me in shape to handle this hunk of iron safely. Still have 20/20 unaided vision which I feel is important for operators of large vehicles.