Hi Mate
Dealers are restricted on the information they can give due to Data protection. I have asked if they would not give me info in detail and they refused, but asking them if it has been reglarly serviced and has it had any major work done, they can give you a yes or no answer.
A tip for you is you can log in tot he vosa website and check all the past MOT's. Look on the back of your MOT cert for details. You'll see all the reports