I’m all for it, but what I’d really like to see is a return to the semi-permanent numbers of old. Having the #3 on your car for doing well instead of having #14 as always in truth matters very little for sponsorship. Its the #1 that matters most and how good is Schumacher’s #3 for image when he struggles to get into Q3 in half the races?
The irony there is that Schumacher would still be carrying the number three under the old system. Tyrrell used to carry the three and four before the new system was introduced. They were bought by BAR, who were bought by Honda, who were bought by Brawn, who were bought by Mercedes. Brawn was the only team to win a World Championship in there, but Jenson Button went to McLaren, meaning Mercedes would still carry the three and the four.
Weren’t Brawn classified as a new team though? It’s why they had 22 and 23 on their cars (they should have had 20 and 21 but Force India had already produced promotional material with those numbers on their car).
I think that it’s still rare for both drivers to change design at the same GP, and mostly they change colouring, not design. But maye because I follow F1 very closely and I know when a driver changes hhelmet how it looks.
But to identify drivers look at the colour of the on board camera: red – 1st driver, yellow – 2nd driver.