I totally ignore this deal because I live in NYC metro area, where rental car is very expensive. however, lots of Hertz local edition elsewhere have very cheap weekend daily rate, which will make this deal hard to pass.
use CDP 1040618 and PC# 120352 at hertz(airport or local), you will earn 3000 Virgin Atlantic miles per rental even just for one day rental.
I did a quick search at some California locaitons, with the coupon code above, the compact car costs only around $20 per weekend day. so 34 rentals will only cost you $680 in total and give you 102000 VS miles= a business class from Shanghai to London. VS business class is one of the best.
Excellent deal, the detail is here, but too bad the deal is ending on Sep 30th. After that, you still earn 1000 VS miles per rental with hertz