Vicki, assuming you have Netflix you should go all the way back to the beginning and watch it. There are some uneven patches, heck even recently they've stumbled a bit, but as you said it's not so much a car show as it is just a fun show to watch a lot of the time. I still go back and watch old episodes from time to time and watched a ton of them when Andrew wasn't sleeping well when he was little.
edit - technically you can't go all the way back to the beginning since they don't include the first series but you aren't missing much there.