Quintero grew up in
San Marcos, California, where by age four he was already riding
ATVs. Quintero began competing in
SSV racing at age 10, and at age 11 won the Junior UTV World Championship. Quintero finished second at the
Mint 400 and the
Vegas to Reno events during his debut season. In 2019, Quintero won the
Best in the Desert championship in the UTV Pro category, winning six events including the Mint 400. In 2020, Quintero began competing internationally, and one year later, in 2021, began competing at the top level of SSV racing, including making his debut at the
Dakar Rally and making two appearances in the
2021 FIA World Cup for Cross-Country Rallies. In the
2021 Dakar Rally, Quintero won six stages, in the process setting a new record for youngest stage winner in Dakar history. For 2024, it was announced that Quintero would be stepping up to the Car/T1+ class with
Toyota Gazoo Racing. He would be taking part in the
2024 Dakar Rally and the
2024 World Rally-Raid Championship, alongside his navigator/co-driver of multiple past campaigns, Dennis Zenz. After experiencing troubles at the Dakar, the American would impress in
Abu Dhabi, winning stage 3 and coming third overall, scoring his first podium in the top class. Though an early issue with his car's engine drive belt took Quintero out of contention in
Portugal, he described the event as "the most fun rally I've ever done". Quintero and Zenz then got stuck on a cliff while trying to overtake Christian Baumgart in stage 1 of the
Desafío Ruta 40; they later won stage 3 of the rally but fell behind with multiple stops in stage 4 thanks to a broken damper and finished 11th. Despite further mechanical issues in Morocco, Quintero finished fifth, which secured him sixth place in the overall drivers' standings. To start off his
2025 W2RC campaign, Quintero won the opening stake at the
2025 Dakar Rally. Having lost time during the two-day endurance stage and dropped further due to punctures in stage 4, Quintero also won stage 5 by one second after inheriting first place from
Nasser Al-Attiyah, who had been penalised for losing a spare wheel. == Rally results ==