Assuming the set-up is just for the design (ie they can then supply the same design in black or gunmetal) and we could have the Z logo instead of their own branding then I'd certainly be interested.
While we're talking speedo dials has anyone thought about having them with odd numbers instead of even? Always seemed strange that the numbers are 20, 40, 60, 80 etc when the speeds you're most concerned about (ie when Mr Plod is in your rear-view mirror) are 30, 50 (motorway roadworks) and 70. Using odd numbers could also mean the clock could show up to 190.