I suffer, to a greater of lesser degree, to lower back pain. Yesterday, by necessity, I had a trip to the south of Edinburgh, then into the city centre (Parking on street cost £15 !). It was then a case of driving back out to Danderhall before returning the 40 miles home in the worst of the evening rush hour traffic. I was sore when I got out of the car, but today I am in absolute agony. Had to take a couple of Tramadol (which I try to avoid). I feel the seating in the Mk 1 Jazz is comfortable enough, but obviously it doesn't give me the support I need. I commented to my wife that if I had to drive in Edinburgh every day, I'd just give up driving.
According to my ScanGauge E, I still managed 53.8 mpg, despite the traffic.