I'm sure this has been done ad nauseam before, but search isn't helping me!
What is the current thinking please for reasonably-priced (under £100 would be nice) high-backed boosters for use in DH's car if he has to pick up DS, or to use as a second seat in mine for when I have to pick up other small folk for playdates?
DH's car has no isofix fittings, mine does. I do like the Britax Kidfix range but they seem to be mid-changeover with respect to models (and they're ££).
DS and his friends are around 6yo.