Research by consultancy BusinessF1 shows that F1's ten teams have a total of 31 sponsorship packages available, with an aggregate value of $111.9m (£70.9m).
While Jordan Ford - which is running this year without a title sponsor - has the highest amount of inventory available at $21.6m (£13.7m), even Ferrari, the world's most marketable motor sports brand and winner of last year's championship, has a $17m (£10.8m) package up for grabs.
The figures suggest that while F1 is back on track after a dismal 2002, the sport still has some way to go to convince sponsors to invest during a period of economic uncertainty.
"Only time will tell whether F1's new format will tempt sponsors back into the fold," said a spokesman for sponsorship consultancy Karen Earl, whose clients include Coca-Cola and Royal Bank of Scotland.
"The early indications are that brands will want to see how F1 shapes up this season before making a call."
BusinessF1 claims Jaguar Racing has three packages on offer, worth $11.3m (£7.2m).
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