Results of crash tests conducted by the Insurance Institute for Highway Safety on the V8-equipped 2016 Chevrolet Camaro, Dodge Challenger and Ford Mustang show that the Challenger is trailing its rivals.

The Challenger, which has earned the distinction of being the fastest and most powerful coupe among the three muscle cars, earned two “good,” two “acceptable” and one “marginal” rating on the five IIHS tests. By comparison, the Mustang and Camaro each earned four “good” and one “acceptable” rating.

The IIHS tests were conducted on small front-overlap, moderate front-overlap, side impact, roof strength, head restraints and seats.

In a statement released by Fiat Chrysler, the automaker responded to the test results by maintaining that “no single test determines overall vehicle safety… FCA US vehicles meet or exceed all applicable government safety requirements.”

Introduced in 2005, the Challenger platform is expected to remain in production until 2019.

None of the vehicles qualified for the IIHS Top Safety Pick award.