The long-time members of the Italian manufacturer’s GT squad will act as test drivers for the new car, co-developed with French constructor Ligier, in 2023 and be part of the racing line-up when the car competes in the FIA World Endurance Championship and the IMSA WeatherTech SportsCar Championship the following year.
Lamborghini Motorsport Director Giorgio Sanna said: “We are particularly proud to announce Mirko and Andrea as the first drivers for the LMDh programme.
“Both have been instrumental in achieving historic results for Lamborghini in GT racing and their inclusion in the LMDh project also rewards their continued commitment to the Squadra Corse [Lamborghini’s racing division] Family.
“I am sure that their talent and experience will be an additional asset for our competitiveness in the first endurance class.”
Bortolotti’s achievements with Lamborghini since joining the factory lineup in 2016 include the entire 2017 Blancpain GT Championship (now known as GT World Challenge Europe), in which he shares a Grasser Lamborghini Huracan GT3 with Christian Engelhart, and two wins in the GT Daytona class the Rolex 24 Hours 2018 and ’19.
“I’m really looking forward to continuing my career with Lamborghini and starting an exciting new chapter,” said the 32-year-old Italian, who is leading the DTM classification with Grasser this year.
“I am very grateful to Squadra Corse for making the LMDh project possible and for the unconditional trust they have placed in me since 2014 [when he started racing Lamborghinis].
“Representing the brand on the most important stage of endurance racing and competing for overall victory in the big endurance classics is both an honor and a responsibility.”
Bortolotti, who spent a year as a works driver with Lamborghini sister brand Audi in 2020, made his Le Mans 24 Hours debut this year at the wheel of the WRT Oreca 07-Gibson LMP2, widely interpreted as a precursor to a role in the LMDh became program.
Caldarelli became a factory rider in 2017, the year he shared BGTS Endurance Cup races with Bortolotti and Engelhart.
The 32-year-old Italian, alongside Marco Mapelli, clinched the GTWCE and Sprint Cup overall titles, as well as the BGTS Endurance Cup Rektor crown, alongside Marco Mapelli at the wheel of a Huracan GT3 Evo fielded by FFF Racing Team, of which he is a team.
“When I started racing for Lamborghini in 2017, my goal was to fulfill my childhood dream: to compete in the most prestigious endurance races with my favorite car brand.
“I’m really looking forward to this new adventure and I’m doing my best to bring all my experience to this project and win new and prestigious trophies.”
Lamborghini will not be funding any overt works teams in either WEC or IMSA when its LMDh goes live.
Instead it will follow the model it inherited in the GT3 ranks with the Huracan and offer a high level of support to customer operations.
The announcement of the Bortolotti and Caldarelli is the third installment of Lamborghini’s LMDh news.
It lifted the lid on the program in May and then revealed Ligier Automotive as its chassis partner in June.
The teams that will represent Lamborghini in the WEC and IMSA are yet to be confirmed.