New civic hybrid

Though there isn't an equivalent Thai Honda press release, this is a nice detailed press kit piece for the Euro e:HEV Civic hatch. https://hondanews.eu/eu/en/cars/media/pressreleases/371298/2022-honda-civic-ehev

What is interesting from multiple articles is that Thai sedan e:HEV gets 4 L/100km or 25 km/L which converts to 58.8 mpg (seen this cited in multiple places but not yet in an official Honda site). Assuming that if you're going to cite only one mileage figure, that'd be one for combined conditions. But this would probably be for the equivalent non-Touring edition. Still for those who really drive efficiently, it should not be a problem to push past 60 mpg consistently.

One wouldn't think that if you just took the current Honda Accord 2.0L ICE (bigger/heavier engine) and dropped it into a Honda Insight body that you'd get an improvement in efficiency. Otherwise it is impressive that in the one generation that our Insight has been around that tech improvements have achieved that additional 52 to 58.8 (~7) more MPG.

I wouldn't rely on the fuel efficiency numbers provided by other countries. They are usually overinflated compared to how we run the tests here in the US. Why European Gas-Mileage Ratings Are So High--And Often Wrong

The new Civic Hybrid Hatch will use the same powertrain as the 2023 CRV Hybrid.

From Honda Press Releases

• New engine achieves an industry-leading 41% thermal efficiency. (2023 CRV Hybrid/Civic Hybrid Hatch)
• The new hybrid powertrain features a 2.0-liter Atkinson-cycle engine with improved thermal efficiently, now at 40 percent (up from 38.9 percent on the 2017 Accord Hybrid), the highest for any mass-produced Honda engine. (2018 Honda Accord Hybrid)
• The 1.5-liter DOHC i-VTEC® 4-cylinder Atkinson-cycle engine develops a peak 107-horsepower (SAE net) at 6,000 rpm and 99 lb.-ft. of torque (SAE net) at 5,000 rpm. The culmination of decades of research and development, this powerplant achieves a maximum thermal efficiency of 40.5 percent, putting it at the leading edge of efficiency among gasoline-powered engines in mass-production vehicles. (2019 Honda Insight)

Looking at the engine thermal efficiency numbers you'll see at most 0.5% gain with the new direct injection engine if you're going from Insight to the Civic Hybrid Hatch. The Civic Hatchback in general gets lower mpgs than the sedan version just due to aerodynamics . Perhaps the Civic Hybrid hatch will do better climbing hills and on the highway with the new direct injection engine but fuel economy numbers beating the Insight in the city would be surprising to me.

As for the price, Honda usually charges around $1500-$2000 additional for a hybrid powertrain. You can add that amount to the MSRP of the current Civic Hybrid Hatch to get a rough idea of what Honda will charge us here.

If it doesn’t get better mpg than Insight when in the states, I will be disappointed. The new Prius got a bump in fuel efficiency and now has better mpg rating than Insight (even though it’s still an ugly car to me).

UK official testing fuel efficiency looks like 56.5 mpg combined (UK) but this converts to about 47 mpg (US). (gallons are not the same). But this is for the hatch, so add a few for the sedan. No differences between MPG numbers for their sport vs. advance trim so maybe no Touring penalty in the States? There'll be more power in there, but bigger ICE as expected won't necessarily be more efficient. One can say that the package will be market mature and provide the power consumers want but for a leap...we'll have to wait.

WLTP UK MPG testing results are delivered at different speeds and then a combined figure. The highest of them is WLTP medium FC (47 mph) MPG = 56 MPG (US). So I think to reach 80 MPG UK = 66 MPG US, requires a few other favorable conditions (tailwind, grade, draft).

"The test now includes four driving speeds: low, medium, high and extra-high. These represent city, suburban, main road and motorway driving, and cars are tested at up to 35mph, 47mph, 60mph and 81mph respectively."