

Using select Rear Wing and then choose "LB Works" or "Rocket Bunny" depending on which car you are using. Move until the right point is highlighted (it will turn pink) and then press The right point is to customise the Rear of the car.

The left point is to customise the License plate. Now use to move the camera view to the back of the car. Now go to the Autoshow menu and select ForzaVista. Visit any Festival and then purchase the relevant car or select the relevant car from your Garage. And it's ridiculously cheaper than this guide suggests. You don't need to buy a Bodykit Preset Upgrade, you only need to apply the Rear Wing / Spoiler to the car. I'm surprised I am the first to mention this. This guide makes you spend excessively for no necessary reason. I have never voted down a guide before but here is why I voted down this one: Or if you want to do the whole body kit, you can do that by:
#ROCKET BUNNY CHALLENGER UPGRADE#
Upgrade -> Custom Upgrade -> Aero -> Rear Spoiler Now if you wanna save some money you can just add the spoiler by doing the following:

I believe these are the only cars in the game that can net you the achievement, but if there is one you find that works and isn't on here feel free to let me know. *EDIT* You do not need to equip parts to all these cars, just one in each category *Edit* Thanks to contributors in the comments, especially Callex dEUS for posting a video with a good chunk of them: Now as the achievement hints at in the name, the aero parts are spoilers (At least thats how I got the achievement). This achievement requires you to fit aero parts from the Rocket Bunny and Liberty Walk manufacturers.
