Apologies if this has been answered before/ needs merging with the double tier points offer thread.

I'm trying to book a flight+car with the car being from the departure airport (so I can have the required 5 nights and return it, can't take 5 nights away completely). On the old style website using the multi destination booking tool it lets you choose the dates you want the car, the new style one only lets you choose multi desitnation flight dates and then gives you car (or hotels) for the flight dates. Any way around this to force the old website anymore?