I know a 98 year old lady that still drives and I believe she is physically and mentally fitter than a lot of 50 years olds and younger and I have no concerns about her continuing to drive. But yes she is certainly is exceptional and most people perceive her to be much younger. And yes her GP knows her age and she insists on her own volition in having a physical twice a year. She reminds me a lot of Dinah Lee another exceptionally fit on the ball old lady albeit still much younger
https://www.youtube.com/watch?v=xWpaJIV1eY0 and
https://en.wikipedia.org/wiki/Dinah_Lee "By 1984, she had become involved in body building winning the 'Australian Female Body Builder of the Year' in the over 35s category. In the 1990s and 2000s, Lee continued performing on the club circuit and became a motivational speaker." I think Dinah will still be rocking when she is 100 too.