Current 1NZ: Sam Thomsen & Caitlyn Thomsen

Nitro #1


Sam Thomsen


Pro Frame Aluminium Decking, Caldow Builders, Rangitikei Tow & Salvage, Fused Auto Electrical, NAB Contracting, AGRI Fencing & Development, All-Terrain Alignments, NT Hire & Contracting, Eades Engineering, SAMS Service And Maintenace Specialist

Truck Details

NameNitro #1
MakeNitro Customs
Year Built2017
EngineChevrolet LS2 6.0L
TransmissionToyota Windom A540e
DiffsNitro Custom 9″ Front, Toyota Landcruiser 80 Series 9″ Rear
LockersTomalin Hydraulic Lockers
SuspensionORI Shocks, 4-Link Front, 4 Link Rear
Wheels35x12xR15 Federal Couragia MT on 15×12″ OMF Alloys


Previous DriversAccolades
Sam Thomsen (2022-)1NZ (2022 & 2023)
Scott Biggs (2017-2021) 1NZ (2018, 2019, 2021)

Nitro #1 was the truck that started off Nitro Customs, built by Scott Biggs & Tom Baeriswyl. Originally built with a 1″ Rollcage, this truck was the first and only LS powered vehicle to be under 1000kgs!

Scott & Jarred Biggs in their 2018 winning year

It took the field by storm taking back-to-back titles followed with a third in 2021. Co-driver for the 2021 season Sam Thomsen would then step up and take his own back-to-back title, making Nitro #1 the equal most successful truck in the sports 40+ year history with 5 National Titles.

Sam Thomsen & Mitch Caldow originally started out in a chopped up Nissan Patrol known as “Bush Pig”. They later moved up to the former Dan Cowper/Bryce Hunger “TOPCOW” CowperTruck finishing in the Top 10 in 2018

With Mitch returning to the drivers seat in “Mad Wolf”, Sam’s sister Caitlyn now makes the step up into the co-drivers seat!