Chrysler and GM plants based in Michigan -- with a few exceptions -- saw their key products sell well in dealerships nationwide.

After enduring unseasonably poor weather for two months -- keeping car-buyers home -- the Detroit Three saw sales thaw, especially when it came to small cars, pick-up trucks and Chrysler's top-selling sport-ute.

Some of the highlights:

Workers at Chrysler's Warren Truck plant can cheer the Ram's 26 percent sales increase for the month. Sales were up by an identical margin for the Jeep Grand Cherokee built at the Jefferson North plant.

As the current version of the Chrysler 200 nears the end of its run, sales dropped 55 percent -- not cause for worry at the Sterling Heights Assembly plant, where the vehicle's replacement is getting strong reviews for improved styling and vastly improved fuel economy.

While GM is staggered by the recall controversy, sales were up 7 percent overall, beating the industry average. Local vehicles were not as strong. The Chevy Impala and Cadillac ATS saw double-digit declines, but the Orion-built Chevy Sonic is on cruise-control with a 45.6 percent sales increase. The Cadillac ATS was down nearly 17 percent compared to last March.

Ford saw a mixed bag. The Fusion continues to be a consistent star. The Flat Rock product had an 8.8 percent sales gain.

See below for the remainder of local plant results:

Metro Detroit Area Plants

GM

Orion:

Chevy Sonic +45.6%
Buick Verano - 7.7%

Hamtramck:

Chevy Impala -12.3%
Malibu +1.8%
Chevy Volt No Change

Lansing:

Cadillac ATS -16.9%
CTS +4.6%

Ford

Michigan Assembly (Wayne):

Ford Focus -3.8%

Dearborn Assembly:

F-150 +5.1%

Flat Rock:

Fusion +8.8%
Mustang +21%

Chrysler

Jefferson North: