Rejoice as Beetle car redesigned (9)
I believe the answer is:
celebrate
'rejoice' is the definition.
(I've seen this before)
'beetle car redesigned' is the wordplay.
'redesigned' indicates an anagram.
'beetle'+'car'='beetlecar'
'beetlecar' anagrammed gives 'CELEBRATE'.
'as' is the link.
(Other definitions for celebrate that I've seen before include "Perform with appropriate rites" , "Have a party in honour of" , "have a good time" , "Rejoice - observe - perform" , "Mark (a birthday)" .)