IMSA has confirmed that rebodied LMP2 cars will be known as Daytona Prototype internationals from 2017 in the renamed WeatherTech SportsCar Championship.
The moves come to let manufacturers create their own bodywork solutions and styling cues for the four allocated P2 chassis - Dallara, ORECA, Onroak (Ligier) and Riley/Multimatic.
The new DPi cars will race against LMP2 machinery, which will all be powered by a new V8 engine provided by British firm Gibson Technology.
IMSA also announced that the DPi contenders will be managed by a balance of performance system against the LMP2 cars, with the same method used currently with LMP2 and DP designs.
“We believe the DPi philosophy represents an attractive combination of safety, technology and relevance,” said IMSA President Scott Atherton.
“It is a modern, international prototype that will provide participating manufacturers, teams, drivers – and especially our fans – with a wide variety of great cars and outstanding competition.”
For the Le Mans 24 Hours from 2017 onwards, a manufacturer planning to race at La Sarthe could retain its own engine but would be required to utilise the bodywork provided by the original chassis manufacturer.
The present coupe LMP2 cars (chassis built between 2014-2016) will be allowed to race until the end of the 2017 IMSA season.