I have the opportunity to buy a super high-mileage (+400k miles) Skoda Octavia for £200. Would you want to see a series on it? And if so, what should we do with it?

SLEEPER !!!
1.8T swap+modifications

Youre gonna have a wide garage man!!

Just do it

Rally taxi

No.

Do a full inspection. See what it needs to be replaced and how much it would cost.

Maybe an episode to show engine wear and other wear.

Yez!

Swap the vr5 into it!

Cheap BTCC Car perhaps?