Having driven in the GT1 class of the
2007 24 Hours of Le Mans for Team Oreca, Lapierre made a full-time switch to sportscars in 2008, competing in the
LMP1 category of the
Le Mans Series with
Team Oreca-Matmut alongside former F1 driver
Olivier Panis. The duo retired from three races, though they were able to claim a podium at the series's crown jewel event: the
1000 km of Spa. The following year saw Lapierre return to Oreca-Matmut, where he and Panis scored two pole positions and won the season-ending race at
Silverstone. Lapierre also drove at
Le Mans that year, finishing fifth alongside Panis and
Soheil Ayari. For the 2010 season, Lapierre once again drove for Oreca-Matmut, this time piloting a
Peugeot 908 HDi FAP. He finished second in the drivers' championship of the
Le Mans Series, having won from pole at the
Algarve. At
Le Mans, Lapierre, Panis, and
Loïc Duval were fighting for a spot on the podium until Sunday morning, when a major oil fire caused the team's retirement. Lapierre entered his final year with Oreca-Matmut in 2011, this time focusing on the new
Intercontinental Le Mans Cup. Alongside his 2010 Le Mans teammates, Lapierre beat the Peugeot works entry by winning the opening race at
Sebring, a result which helped the team, which only entered four of the season's eight events, to finish fourth in the standings. , Toyota's home race. Lapierre became a factory driver for
Toyota in 2012 as part of their programme in the newly-formed
FIA World Endurance Championship, where he and
Alexander Wurz would be driving the
Toyota TS030 Hybrid #7 entry from the
24 Hours of Le Mans onwards. Despite retiring at Le Mans, where Lapierre had briefly taken the lead going into the late hours of Saturday evening, due to an engine failure, the team managed to finish third in the standings, as Lapierre and Wurz took wins at
São Paulo,
Fuji, and
Shanghai. In 2013, Lapierre remained in the
WEC together with Wurz and
Kazuki Nakajima. The season proved to be challenging during its first half, with the car retiring at
Spa and not being entered at two races. However, victory in
Japan (where the race was abandoned after 16 laps behind the safety car due to wet conditions) and a second place from pole in
China put the team back to fourth in the standings. 2014 would be Lapierre's final season with Toyota, as he contested the first four races of the
WEC season alongside
Anthony Davidson and
Sébastien Buemi. Strong showings at
Silverstone and
Spa yielded two victories for the #8, meanwhile Lapierre scored his best
Le Mans result to date with a third place overall. Following another podium at
Circuit of the Americas, Toyota decided to drop Lapierre from the lineup, with "personal reasons" — one of Lapierre's family members supposedly fighting against a serious illness — being cited amidst rumours of the manufacturer reacting to two accidents Lapierre suffered in wet conditions at Le Mans and Austin. He was initially confirmed as one of their drivers for the 2015 season, but lost his race seat in January of that year. Going into 2015, Lapierre stepped down into the
LMP2 category, taking part in three races of the
WEC with
KCMG alongside
Richard Bradley and
Matthew Howson, replacing
Nick Tandy for the Brit's
Porsche-related absences. He finished all three races on the class podium, highlighted by a victory at
Le Mans where, despite a late off from Lapierre that required marshal assistance to get the car going, KCMG took a controlling victory. The same year also saw Lapierre drive for
Thiriet by TDS Racing in the final round of the
European Le Mans Series, which he won after a charging performance. Finally, he also drove in the final four events of the
World Touring Car Championship as part of the
Lada works team. Lapierre made LMP2 his home for the 2016 season, driving for
Signatech Alpine in the
WEC and with
DragonSpeed in the
ELMS. Partnering
Gustavo Menezes and
Stéphane Richelmi in the former, the Frenchman would distinguish himself by leading the team towards a dominant title; the team scored seven podiums, including a class win at the
24 Hours and three further victories. Two retirements in the latter meanwhile prevented the DragonSpeed crew from fighting for the title, though Lapierre,
Ben Hanley, and bronze-ranked Henrik Hedman managed to finish the season fourth overall after winning from pole at
Spa. Lapierre returned to Alpine for the
2017 WEC season, though he would be driving the third
Toyota entry for the races at
Spa and
Le Mans. Once he returned to Alpine, Lapierre was able to improve their fortunes, scoring five successive podiums and winning the race in
Austin. This late surge propelled the team to third in the standings. Additionally, Lapierre re-joined DragonSpeed in the
ELMS in 2017, though his three pole positions could not prevent the team from finishing eighth in the standings. For the
2018–19 WEC "Super Season" Lapierre returned to Alpine on a full-time basis, partnering
André Negrão and silver-ranked
Pierre Thiriet. Throughout the campaign, the trio proved to be the class of the field, as they finished on the podium in each of the eight races on their way to the LMP2 title. Their two wins that season were both achieved at Le Mans: in
2018, Alpine inherited victory after a disqualification for
G-Drive Racing, whereas the
2019 race was won after a secure performance, making Lapierre a four-time class winner at Le Mans in as many races. During this time, the Frenchman kept competing in the
ELMS, moving to
Cool Racing in
2019 after a final campaign for DragonSpeed. He remained at the team going into the
2019–20 WEC season, helping the team to take their maiden victory at the opening race in
Silverstone. At the end of 2020, in a season which the team finished sixth out of eight teams (having fielded a bronze driver with team owner Alexandre Coigny), Lapierre became part of the Cool Racing team as its new team principal, as the outfit was renamed to Cool Racing / CLX Motorsport — the L in CLX standing for Lapierre. Lapierre entered the
Le Mans Hypercar class of the
WEC with Alpine in 2021, driving the grandfathered
Alpine A480 together with
Matthieu Vaxivière and André Negrão. In a year where the only other full-time entrant Toyota dominated, the Alpine trio finished all six races on the podium and ended up third in the championship. The French team returned with a strong performance at the season opener of the
2022 season, winning the shortened event at
Sebring. After a challenging
Le Mans event the team won at
Monza, though they were unable to hold the championship lead, eventually losing out to the No. 8 Toyota. As the usage of former LMP1 machines was disallowed in 2023, Lapierre instead focused on the LMP2 Pro-Am class of the
ELMS with Cool Racing, where he had been driving for the past three years parallel to his Alpine exploits. Driving alongside Alexandre Coigny and
Peugeot reserve driver
Malthe Jakobsen, Lapierre helped the team towards two Pro-Am victories at
Spa and
Algarve, though the squad narrowly lost out on the title to the
AF Corse crew in the season finale. The trio also took part in the same subclass at
Le Mans, where they finished second. . Having completed a testing programme for Alpine's Hypercar, the
A424, Lapierre became part of their WEC lineup again in
2024, driving the #36 alongside Vaxivière and
Mick Schumacher. Lapierre would announce his retirement on 2 October 2024 prior to the conclusion of the 2024 WEC season in
Bahrain. The
2024 6 Hours of Fuji would be his final motor race, completing the event with a podium finish in 3rd with the A424 alongside Vaxivière and Schumacher. Lapierre stated that he would turn his focus towards his team principal role at
COOL Racing. Two days later, Lapierre was named Sporting Director for Alpine's endurance team in 2025, working under team principal Philippe Sinault. == Racing record ==