Jonathan
Sole trader or limited company is irrelevant in respect of the tax/VAT treatment of commercial vehicles. However if a vehicle is sitting on the balance sheet of a sole trader it is possible that there might be an element of private use. If there is private use then capital allowances will be restricted by the element of private use.
I think there was a test case put before the European courts some time back where an attempt was made to reclaim the VAT on cars that limited companies made available to their employees but I don't think it got very far.
Michael
It's generally not possible to reclaim the VAT on a car that is bought for your business. There are a few exceptions, eg taxis, car hire companies and driving schools but generally speaking you can't recover the VAT. You can recover the VAT on a commercial vehicle, (ie 4 wheels and an engine but not a car).
The only instance where I know of being able to claim back 50% of the VAT is for car leasing companies, ie where there is private use of the car only 50% of the VAT is recoverable. But generally the rule is VAT on cars - no, VAT on commercial vehicles - yes.
Regards
Joy