3. Window art
This bright idea came from a parent pal in the office who we often consult for kid matters. It's no secret children like drawing, particularly on surfaces they aren't meant to - like car windows. She suggests picking up a set of washable markers and glass cleaning wipes. Children can doodle on the windows, wipe it off and start again - ideally on the side windows rather than the rear window, for safety reasons. This one also gives grown-ups a bit of a breather.
4. Alphabet game
This is still one of our favourites and can be adapted to suit the age of participants. Players run through the alphabet, one person for each letter. They name something beginning with that letter, depending on the topic. Boys and girls names are easy ones to start: A for Adam, B for Brett, etc. Older kids might be more into famous faces, sports stars or names of songs. Continue until someone gets stuck (but consider making allowances for tricky ones like Q and X).
5. Car cricket
Fitting since we're all getting over a serious case of Cricket World Cup Fever. This one is best for kids who can count, but older ones can always help out the littlies. Each player takes a turn "batting". Cars equal 1 run, cars with a trailer equal 2 runs, bus or truck equal 4 runs (a boundary), semi-trailer equals 6 runs. The batter continues to score until a red car passes, in which case they are out. The next batter takes the crease. The game can be played until a player reaches 100. Bend the rules to suit whatever you're passing and get everyone involved trying to spot the red cars ahead.