Another month has gone by, which means it's time for another round of superb deals for hybrid, electric, and fuel-efficient cars.
For September, many of last month's cars hold their place on the list, though incentives have gotten better for some of them.
As always, offers listed here reflect the Southern California region unless otherwise noted.
DON'T MISS: Best deals on hybrid, electric, fuel-efficient cars for August 2017
For more car buying insight and information on the cars listed here, head to Cars Direct.
2016 Ford C-Max Energi
As it has for the past few months, the Ford C-Max tops the best-deal list for hybrid cars, although the lease deal isn't quite as good this month.
Ford will now lease a C-Max for $149 per month for 36 months and $2,549 is due at the time of signing.
Last month, Ford asked for a lower $1,999 up front, but the annual mileage remains the same at 10,500 per year.
2018 Toyota Prius C
The Toyota Prius c is a new addition to the best-deals list, thanks to a generous $3,000 cash-back offer.
That incentive applies to 2017 models as the 2018 units have begun to arrive at dealerships.
Prius c drivers will see an EPA-estimated 46 mpg combined fuel-economy rating.
2018 Kia Optima Hybrid
Finally, the Kia Optima Hybrid lands on the list with a $4,000 cash back offer.
With an EPA-estimated 42 mpg combined, the Optima Hybrid is a solid deal.
2017 Kia Optima Plug-In Hybrid
Once again, the Kia Optima Plug-in Hybrid returns with a solid lease rate and an EPA-estimated 29 miles of electric range.
Those looking at the Optima Plug-In Hybrid will be treated to a $249 per month payment for 36 months and only $1,999 due at signing.
In California, a Clean Vehicle Rebate of $1,500 and prized single-occupant access to the carpool lane are additional incentives.
2018 Chevrolet Volt
Also back among plug-in hybrids is the Chevrolet Volt with an identical lease rate of $294 per month with $491 due at signing.
Lessees in California, Connecticut, Massachusetts, Maryland, Maine, New Hampshire, New Jersey, New York, Oregon, Rhode Island and Vermont will receive 12,000 miles annually, though the Volt's national deal allots more, at 15,000 miles.
Nationally, the lease rate is $299 per month with $1,301 due at signing.
2018 Ford Focus Electric
The Ford Focus Electric keeps plugging along as the best electric-car deal. (See what we did there?)
The lease deal remains the same as August with a $139 payment per month and $2,739 due up front.
The Focus Electric features a lower effective lease rate in California, too, and boasts an EPA-estimated 107 MPGe combined rating for energy efficiency.
(Miles Per Gallon Equivalent, or MPGe, is a measure of how far an electric car can travel on the same amount of energy contained in 1 gallon of gasoline.)
2017 Chevrolet Bolt EV, road test, California coastline, Sep 2016
The Chevrolet Bolt EV is now eligible for a lower lease rate than before in California and those states that have adopted its lower-emission rules.
Buyers in those states will see a lease rate of $299 per month for 36 months with $502 due at signing.
Nationally, the rate isn't as sweet; lessees will face a $329 per month payment and $3,392 due at signing.
2017 Chevrolet Cruze Diesel
The Chevrolet Cruze Diesel returns as the sole diesel-powered deal for September.
Unfortunately, the Cruze Diesel's previous offer of 20 percent off MSRP expired at the end of August, but similar savings are still achievable.
Chevrolet is offering a $3,500 rebate nationally and current lessees of GM vehicles will receive another $1,500 for a total of $5,000 on a Cruze Diesel.
The Cruze Diesel returns an impressive 47 mph highway figure when equipped with an automatic transmission.
2017 Toyota Yaris iA
Fuel-efficient gasoline cars
The Toyota Yaris iA continues to be a stellar deal for those looking at a traditional gasoline-powered car.
However, the best deal is for those looking to purchase, which unlocks a $2,000 cash back rebate.
Those looking to lease will find a better deal on a Corolla since incentives bring the monthly payment lower.
2017 Nissan Rogue, 2016 Miami auto show
Finally, the Nissan Rogue also returns as the best deal on a fuel-efficient gasoline-powered crossover.
$2,500 cash back is available, but shoppers should still note the difference between the 2017 and 2017.5 model years.
Nissan quietly updated the crossover for a 2017.5 model year to include more safety features for $400 more.
Both model years are eligible for the incentives.