This link takes you to a discussion of the experiment Boyle performed, the data he gathered and his picture. His law gives the relationship between pressure and volume if temperature and amount are held constant. If the volume of a container is increased, the pressure decreases. If the volume of a container is decreased, the pressure increases.
You will be paid an annual salary of Â£40,000 gross. . You will receive a car allowance of Â£350 per calendar month for you to use your private car and you will be reimbursed the mileage you do on company business at 40p per mile for the first 10,000 miles per tax year and thereafter at 25p per mile. am presuming car allowance will be fully taxed as salary and mileage paid Gross. Note it is very unclear from your post if this assuption is correct. At face value it looks like your boss is using the most tax efficient system for paying you for the car.
My view is that the mileage is payable at 40p upto 10,000 miles and 25p per mile thereafter and that the car allowance is added to the employees gross salary and is dealt with under PAYE.I do not think the car allowance as described in the contract will be interpreted by HMRC to come under AMAP rules. am presuming car allowance will be fully taxed as salary and mileage paid Gross. Note it is very unclear from your post if this assuption is correct. At face value it looks like your boss is using the most tax efficient system for paying you for the car.