Britax Vigour 4 - folding question - really quick help please!

[QueenFizzBangPoppingEverything]

Trying to decide whether to buy this or something else and the clincher will be - does it fold with the seat unit still attached or do you need to remove it?

TIA

www.britax.co.uk/uploads/user-guides/28.pdf

Says can be founded either with or without seat unit on britax website instruction manual

Obviously a bit bulkier but yeah it folds with seat still attached.

(we found it took up less space in the car boot if you take the seat off and lie it over the folded frame though)