"aerodynamic package" is a correct and usable phrase in written English.
You can use it when referring to a type of design that reduces drag on a vehicle or other object. For example, "The new car has an aerodynamic package that boosts fuel efficiency."
The McLaren has a revised aerodynamic package, with different wing profiles as well as more tightly-packaged bodywork.
It's the unmistakable Range Rover look, in a bit more sporty and aerodynamic package.
There is a rumor that Nascar's latest attempt to "manage competition," its new aerodynamic package, favors the configurations of the Dodge chassis.
The use of the restrictor plates, which slows a car down by limiting the air flow to a carburetor, and an aerodynamic package that was first used last fall at Talladega provided for a close race.
Among the adjustments were an aerodynamic package that included a bigger spoiler in the back of the cars and a thin metal strip, called a blade, atop the cars.
When the Daytona 500 is run for the 43rd time Sunday before a capacity crowd and a national television audience, the 43 cars, including Earnhardt's, will be required to include an aerodynamic package that, Nascar hopes, will provide for a closer and more exciting race.
Lectures on restrictor plates and aerodynamic packages tend to draw yawns outside the grease pits, but they are critical to understanding the sociology.
Because of aerodynamic packages, the days of a driver pulling out to a big lead and cruising to victory are long past.
Johnson's crew chief, Chad Knaus, said he would use the six races before the Chase to the Championship, including the Brickyard 400 on Sunday, as a chance to experiment with aerodynamic packages they would use in the last 10 races.
Speeds are governed by the use of restrictor plates and aerodynamic packages, and the drivers are still concerned that they will be traveling in packs that will be uncomfortably large.
McLaren and Force India introduced revised aerodynamic packages for their MP4-23 and VJM01 chassis, aimed at increasing the amount of downforce, and therefore grip, produced by the bodywork.
