An attenuator increases the safety of the car by decreasing G-force levels. Team Penske is believed to have filled in a gap to eliminate a slight lip, which can slow the car down. Team Penske's ...

The seemingly straightforward, utilitarian feature is actually nothing of the sort since it’s a LECUA1000 (Luxman Electric Controlled Ultimate Attenuator) with 88 discrete steps that allow for ...

Josef Newgarden's car he won the 2024 Indy 500 with had the same modified attenuator Penske failed tech inspection with during qualifying for the 2025 race. A walk over to the IMS Museum ...

The league said the issue involved modified attenuators that violated IndyCar rules. “The integrity of the Indianapolis 500 is paramount, and this violation of the IndyCar rule against ...