We didn't like this Tesla vehicle's storage space (4)
I believe the answer is:
boot
'storage space' is the definition.
(boot is a kind of storage space)
'we didn't like this tesla vehicle's' is the wordplay.
I cannot quite see how this works, but
'tesla' could be 't' (scientific unit) and 't' is found within the answer.
The remaining letters 'boo' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for boot that I've seen before include "Hard kick; part of car" , "Kick; start (a computer)" , "Dismiss" , "Stout shoe" , "Car luggage space; kick" .)