Thanks All,
the service book appears complete. It is due a service now, so I told the garage I'd get it done (helped reduce the price). It was done at 92k, so is due aound now (current mileage 102k).
Belt was done at 60k. There is a bit of vibration up the wheel which starts at 60mph, but this doesn't happen all the time. Also slight grind/squeal from one wheel when braking.
Planning to ask garage to check tracking/tyres etc when I take it in. They quoted £256 for a standard service, but I do wonder whether at 102k I need to maintain servicing with Lexus.
Otherwise, car is very clean, zero marks - one long term elderly gent who was handly with a chammy. Nice(!) shade of beige/silver.