That was in 2004, pre-trip computers in common cars.
Really? My 1987 Audi had a trip computer, as did my 1990 Ford/Mazda, my other 3 1990 Audi's, etc. Oddly, our top of the line 2003 Subaru doesn't have one.
We drove minivans on that comparo (see the June 2004 issue). The Odyssey doesn't have one, and that I'm sure as I own a 2003. I'm pretty sure the Sienna, Grand Caravan and Freestar did not have one either. The fully gizmoed Quest SE probably had one, but if it did, the numbers weren't used.
I don't count Audis as "common cars"
... my 2001.5 B5.5 Passat had a trip computer too.