I spoke to Harwoods Audi today in Chandlers Ford, and they confirmed they cannot order the Q4 45 yet as others have said as it is not set up on the motability system. If I order the 40 version now I would probably get a 45, but they would not guarantee. He mentioned that if certain extras were added to the build to make it more bespoke it would be highly likely to be upgraded to the 45, but again no guarantees.