Sure but what big name, sustainable sponsors are still available?
Surely between all the big teams in Motorsport, they've exhausted every major option for investment.
It's highly unlikely that any new team is going to discover a hidden pot of gold that no one else has attempted to find.
All big investments these days seem to be short term, realise their money only gets them physical assets and staff, no success. Don't see any return on their investment and leave the sport.
Look at Tony Fernandez, Richard Branson/Virgin, Vodafone, Telefonica, Hewlett Packard, Intel, etc.
All invest hundreds of millions in F1 sponsorship/funding and all have withdrawn because there was no return for them.
Vodafone, you could argue funded a few championships, but if you compare the success they saw to the £40m+ per year that they shelled out for over 10 years, it's still a massive financial loss.
No one is going to spend big on motor sports sponsorship any more.
The world is a different place to what it was 10-15 years ago.