With respect, you say you have just retired? so you will need to keep hold of your money, you car's mileage is nothing to the modern car's of today, you know the car Its 3 year old, it will last you years to come providing you get it serviced at a VAT reg garage, don't go to the dealers as you will only get ripped off, providing when you get the car serviced & stated that they fit genuine Toyota parts the car will be right, a 12 month service should be ok depending on the mileage you do.