I asked an Art Director colleague for thoughts on the design and this was the response, which I thought I'd share:
IMHO, there are two ways of analyzing the designs.
Primarily, there's the silhouette. If you got rid of all the details of both cars and just filled them in as black silhouettes, then it'd be confusing over which car is which. Whereas, for example, if you looked at the silhouette of a Jeep and a Toyota FJ Cruiser, you wouldn't get confused at all. Same genre of vehicle, but both totally distinct silhouettes.
Secondarily, the details such as the hood scoops and side scoops are placed in the same areas on the silhouettes. The shapes of those scoops are different, but their placements on the silhouette just reinforce the feeling of the sihouette "rip-off." It's like they double-downed on the rip-off. I'm sure there are technical functional things that require the scoops to be where they are, but plenty of other cars don't have those details at all... let alone those details on the same silhouette.