Duncan posted a link to this promotion which looks pretty good on the face of it.
Hertz is offering 2,013 Virgin Flying Club miles if you rent for 3 days or more, in any country, before the end of June. The only catches are:
a) you need to book by February 28th, despite having until 30th June to pick it up, and
b) you need to use the Virgin discount codes, which may not necessarily be the cheapest you can access
And, of course, for rentals of under 3 days the standard Hertz deal of 1,000 Virgin miles is also attractive.
As per my post yesterday, remember that Iberia Plus is offering 900 Avios per day on Hertz rentals (minimum 3 days). That deal has tighter restrictions on car class and country of rental, though.
(Want to earn more Virgin Flying Club miles? Click here to see recent articles on Virgin Atlantic, Little Red and Flying Club, and click here for the latest news on earning and spending other airline and hotel points.)