Information about the facilities in the test centers
Every test center provides different services. Some local testing centers have parking lots for you to park your car should you arrive on the test center with one, and some may not. Other test centers may differ on the languages spoken by the staff (e.g. Scottish Gaelic in Scotland, Welsh in Wales, etc.).
You should contact your test center to learn more about the different services they cater. Ask which test centers have the facilities you need (e.g. parking lot if you have a car). You can also have this information by calling the Life in the UK Test Helpline.