Welcome to the forum. I think you're the first forum member who owns the new Radiant Red exterior color for a 2021 Touring (adding to
@MACT's Radiant Red 2021 EX).
From what you described, it sounds like the majority (8 miles) of your daily commute will be in
city traffic/speeds. That's a range where the Insight excels, and you should see high fuel economy especially when combined with Eco mode. City speeds are also ideal for using the regen paddles; but also keep in mind that
'initial travel' of the brake pedal is also regenerative (even without use of the paddles).
For the ~4 miles of
highway travel, keep in mind that EPA highway ratings are based on ~60 mph. Above ~65 mph, you'll see a hit to fuel economy, as the gas engine (ICE) runs more to direct-drive the wheels. So on highways, speed and fuel economy are a trade-off. Hypermiler
@Moviemike finds
Normal mode is best for highways, and
@hasarad offers good tips for using the
"Power/Charge" (green / blue / gray) meter to manage drives.
For weekend trips, note that short drives can hurt fuel economy especially in cold weather (and if cabin heat is being used). The time it takes for the ICE to warm up is best offset by longer (5+ mile?) drives. You could also consider
passive heating to reduce ICE run time, as it's the primary source for heating. And a new tip that was shared by
@mcm626 is the use of
Sport + EV + max Regen to improve fuel economy especially in cold weather.
Two other 'quick tips' to offer: 1) Hybrids take a
30% fuel economy hit in cold weather, so your results will 'naturally'
improve as the weather warms up. 2) Terrain (hills in particular) can be a fuel economy killer, so
understanding elevation changes can help optimize your results; "rolling" terrain seems to be optimal for the Insight to build/use HV battery charge.