That's just weird. I actually used the Garage search tool to look for a 92 Metro (trying to see if the writer had registered his car here) before posting the link. None came up - yet there it is in iwilltry's garage sig/link.
A belated "hello", iwilltry! You know you've got one of the rare combos in a mk3 suzukiclone: 4 doors, 5 gears. The majority of 4-doors were sold as automatics.
I plugged the results of the coastdown test I did this spring on I-26 in the SC coastal plains into the formula (had to convert from my sec per 10mph drop to the spreadsheet's mph drop per 10 secs) and got a Cd of 0.18. I used the air density and Crr values given in the spreadsheet. To fine tune it better, I'll need to calculate my density altitude for 100 ft elevation, 78F, and 75% RH.