Once again, it's time to look at the month's best deals on hybrids, plug-in hybrids, electric cars, and fuel-efficient gasoline cars.

Deals for March include several new models, as well as a couple of holdovers from the previous model year.

Some manufacturers seem to be more aggressive with incentives this month than others. We'll let you figure out which ones.

DON'T MISS: Nissan Leaf leases can extend until all-new 2018 electric car late this year: BREAKING

As always, head over to CarsDirect for more information.

Hybrids

Even though the 2017 Optima Hybrid models now arriving in showrooms are based on a redesigned body, Kia appears to have plenty of 2016 Optima Hybrids left.

Shoppers willing to stick with the previous-generation model of the mid-size sedan can lease an Optima Hybrid at $179 a month for 36 months.

That offer, which lasts through April 3, includes $1,999 due at signing, and an allowance of 12,000 miles per year.

ALSO SEE: 2017 Kia Niro hybrid 'crossover' wagon priced from $23,800

Another aging model that continues to represent a good deal is the 2017 Lexus CT 200h hatchback, first sold as a 2011 model and little changed since then.

This month, the CT 200h can be leased for $249 a month for 36 months, with $1,499 due at signing.

That's a $50 cut in lease payments compared to last month, but with a $400 increase in the down payment.

As before, the mileage cap for this lease is 10,000 miles per year.

2017 Kia Optima Plug-In Hybrid

2017 Kia Optima Plug-In Hybrid

Plug-in hybrids

The 2017 Kia Optima Plug-In Hybrid is the brand's first plug-in hybrid, and uses the newest Optima body—there's no older version as there is for the conventional Optima Hybrid.

Despite being a relatively new model, Kia is offering lease incentives on its plug-in hybrid mid-size sedan.

CHECK OUT: 2017 Hyundai Ioniq prices: hybrid starts at $23,035, electric at $30,335

Kia's best lease offer is $289 a month for 36 months, with $1,999 due at signing and a cap of 12,000 miles per year.

This offer lasts through April 3.

2016 Ford Focus Electric

2016 Ford Focus Electric

Electric cars

Lease incentives on the 2016 Ford Focus Electric carry over from last month, offering buyers the choice between a good deal and the major range boost of the updated 2017 model.

The current 2016 Focus Electric lease offer is $119 for 36 months, with $669 due at signing and an allowance of 10,500 miles per year. It remains in effect until April 3.

The 2017 Focus Electric likely won't get the same discounts, but it will have an EPA-rated 115 miles of range.

In comparison, the 2016 Focus Electric is rated at 76 miles of range—now among the lowest of all battery-electric cars.

The 2017 Focus Electric also adds CCS DC fast charging, but is otherwise largely unchanged from the 2016 model.

2017 Chevrolet Spark

2017 Chevrolet Spark

Fuel-efficient gasoline cars

This month, Chevrolet is offering generous incentives on two of its smallest passenger cars, with some caveats.

The 2017 Cruze gets a $3,000 "conquest bonus" for buyers coming from other brands, through the end of the month.

To qualify, buyers must show proof that they currently lease a 2011 or newer model from one of the following brands: Honda, Hyundai, Kia, Mazda, Mitsubishi, Nissan, Scion, Subaru, or Toyota.

Chevy is also offering a 20-percent discount on the 2017 Spark, but only through March 13.

That equates to as much as $3,660 off the price of a Spark 2LT model, estimates CarsDirect.

In contrast, the normal rebate for the 2017 Spark is $500.

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