I emailed the DVLA yesterday asking if they interpreted using my classic bike for travel between offices and claiming the HMRC mileage allowance for motorcycles would class as use commercially for a trade or business and so require tax.
Their strange response: "Upon checking the record I can confirm the vehicle is registered under the Historic Tax Class.
It may help if I explain regarding Commercial Use for the vehicle this will matter will need to be discussed with your Insurance.
I hope this information helps."
Looks like someone in the DVLA is planning on a career in politics
That "It may help if I explain " sentence,
was the e-mail signed Yoda