Drive there from where? With the North Pole you can easily start in Canada and drive north. The South Pole in Antarctica.

And they've done snow drive, why do it again?

Preferably something that finishes off Hammock. They almost succeeded in an earlier series, but 'thanks' to the Air Ambulance he survived. Quite why they didn't put a match to the car before he could crawl out, or be pulled out, escapes me.

I don't think they've tried delivering battle field weapons such as tanks by parachute.I believe the Scimitar was parachute friendly, so to speak.

Making a hover car, that can act as a hovercraft or a road going vehicle.

Have they reviewed air-cars, which are road going, and can fly?

Have they done anything on the land speed records, and the current attempt by Noble et al?

I don't think they have crossed China, or Australia, by car. Or Japan. They could do Canada, from one end to the other. In Winter there are some nice ice bridges.

Have they convered a vehicle to run on tracks, or skis? What about putting a car on large ribbed tyres, so that it floats, and paddles along.

There are plenty of things to try. Hopefuly some dangerous Hammock unfriendly ones.