I got 22.4 mpg from last week using my MCS for normal daily commuting in mixed urban gridlock traffic and some highway and one weekend day of autocrossing- 11 runs. Tires were 215/45-17.

Then this week I swapped the tires to 175/65-15 and got 29.4 mpg.

I'm going to see if I can try for better than 30 mpg this coming week.
It's hard to drive at 55 mph and not get into heavy traffic.