You use too many commas! Try this:
I am writing to apply for the position of Senior Pool Driver as advertised on the
Direct Gov website. I have included a copy of my curriculum vitae in support of
my application and I feel my skill would be ideally suited to this
position.
I have worked as a professional driver for the most part of the last 20 years and
have always enjoyed driving jobs. I have always had a clean licence and have
never had any criminal convictions.
During my career I have worked as an IDCH accredited emergency ambulance driver
attending reported incidents, as a freelance driver for the renal transplant
team and as a qualified driving instructor. I have been ROSPA trained and have always
ensured my vehicles are always kept clean, in good repair and in a state of
readiness.
I have experience of driving a wide range of vehicles from standard cars, vans
and ambulances to 7.5 trucks. I have a good knowledge of motor mechanics and can
competently deal with roadside breakdowns.
If you would like to know more about me or have any questions regarding the
information on my CV please do not hesitate to contact me.