Humans cannot synthesize astaxanthin in the body, nor does it appear to act as a pro-vitamin for Vitamin A (retinol) in mammals under normal conditions although it appears that in states of Vitamin A deficiency astaxanthin (in rats) can be forced into a provitamin role.
Annual Running Cost (Â£) = Cost per mile x Average mileage /100. The Renault Clio takes about 40 litres to fill up and travels 400 miles on a full tank, giving it a respectable MPG of 45. This equates to around 10.5p/mile assuming that the Price of Petrol is around 105p per litlre. For a Renault Clio.
Even if the interest rate is zero (which it certainly won't be!) you will pay $25,000 and you will drive 5.5*12000 = 66,000 miles, which works out to 37.88 cents per mile. That is considerably more expensive than driving a used car which costs 10 cents per mile for maintenance and repair.