On 23 May 2014, at 17:31, Timothy Collinson <xxxxxx@port.ac.uk> wrote:

> Thoughts?  (have I done my math right?)

I don't agree with just adding the percentages together and then multiplying, instead try
multiplying each percentage in turn so that it becomes progressively more expensive to
make things better and harder to make things cheaper.

Also the price ranges won't be big enough - I looked up the price range for a Ford Ka
vs a Ford Mondeo and it is nearly 4x between the cheapest Ka and the most expensive
Mondeo.
That doesn't consider different manufacturers and a top end Mondeo isn't that much
more capable than a bottom end Ka.

+10% might just give you a better in car entertainment system and perhaps nicer seats.

Phil Kitching