If it was over-revved before September 2017 it wouldn't have got a new warranty.
FYI the mileage at it's last MOT in August was 32,887.
'MOT checker' shows up something interesting. The car had done 22,433 miles in its first 3 years (to 9/13) and has done only 10.5k in the last 4.5 years.
It looks like it was used regularly early on and sparingly since. That's not necessarily something to be suspicious of but I'd be wondering what circumstances caused the change of use.