Empress do a Modern British vehicle crew.
Though I suspect designed for the Airfix 1/48 scale British Operation Herrick range, it works with the larger scale 28mm vehicles.
Here they are with an Empress 1/50 scale Jeep (from their WW2 range).
There are also the Jeep (and M151) crews from their WW2 and Vietnam ranges.
I really want Crooked Dice to do a Minion figure seated, just mentioning it...