4×4S.ORGTHE REGISTRY RESEARCHED · UPDATED 16 SEPTEMBER 2026

Land Rover G4 Challenge 2006

ALSO KNOWN AS G4 CHALLENGE 2006 · THAILAND, LAOS, BRAZIL AND BOLIVIA

The second and last Land Rover G4 Challenge: eighteen competitors from eighteen nations, 28 days from Bangkok's Sanam Luang on 23 April 2006 across the Mekong into Laos, then 10,000 miles by charter flight to Copacabana Beach in Rio and on to the Bolivian Andes, finishing in a river bed near Tarija on the Argentine border on 20 May, where the South African adventure racer Martin Dreyer won a Range Rover. The competitors drove Range Rover Sports, Freelanders and Discovery 3s; the 29 Tangiers Orange Defender 110 Td5 station wagons in the 134-vehicle fleet were the support, communications, recce, film and medical vehicles on every stage.

28DAYS OUTBOUNDDISTANCE4COUNTRIES18WAYPOINTS1VEHICLE23CREW
FOUR STAGES JOINED BY AIR; THE LINE FOLLOWS THE CAMPS AND COMPETITION SITES NAMED IN LAND ROVER'S DAILY PRESS RELEASES AND THE OWNERS CLUB STAGE DESCRIPTIONS, NOT THE CONVOY'S EXACT TRACK.
THE JOURNEY IN SEVEN MOMENTS
23 April 2006Bangkok startEighteen competitors, one per nation, at Sanam Luang24 April 2006Across the MekongThe 60-vehicle convoy ferried into Laos27 April 2006Kong Lor caveHead-to-head kayak race seven kilometres underground4 May 2006Luang PrabangTimokhin takes the yellow jersey; Russia/Belgium dominate the week7 May 2006Copacabana BeachStage 3 start in Rio after the flight from Bangkok15 May 2006Salar de UyuniStage 4 opens on the world's largest salt flat at 4,000 m20 May 2006The Challenge FinalMartin Dreyer wins in a river bed on the Argentine border; Brian Reynolds' Team Spirit Award
DEPARTED23 April 2006
Sanam Luang, Bangkok
ARRIVED20 May 2006
Challenge Final in a river bed near Tarija, on the Argentine border; awards in Tarija
DISTANCEFour stages joined by charter flight, including the 10,000-mile flight from Bangkok to Rio; no overall driving distance was published
COUNTRIES CROSSED, IN ORDER
THThailandLALaosBRBrazilBOBolivia

The expedition

After the 2003 event was criticised as too much adventure race and too little driving, Land Rover made the 2006 Challenge more vehicle-based, with 4x4 competitions alongside the kayaking, mountain biking, running, abseiling, jumaring and orienteering, and with the daily Strategy Pit Competition now deciding which team left camp first. Eighteen nations sent one competitor each — three of them women — after International Selections at Eastnor Castle in the winter, when a Lake View camp in sight of the castle gave the field its first taste of cold camping. Recce teams had spent months in Laos, one of the least developed countries in the world and still littered with unexploded ordnance from the 1960s–70s bombing, checking and where necessary clearing every campsite and competition site; blue flags marked the safe perimeter of each camp.

Stage 1 opened on 23 April 2006 in Sanam Luang Park in the heart of Bangkok with an urban start competition that included hand-winching a 600 kg tuk-tuk off the ground, won by Russia's Dmitry Timokhin. On day two the 60-strong convoy drove east through Thailand's 'Jurassic' region of pineapple fields and forested hills to the Mekong, where the Range Rover Sports were ferried across the chocolate-coloured river into Laos under lightning and a hot wind to a camp on the Lao bank. Day three began with a Buddhist blessing at the sixth-century Sikhottabong stupa near Thakhek before the first remote competitions among the limestone pinnacles, paddy fields, log bridges and ruts of central Laos; the ruined town of Mahaxai, 400 km south of Vientiane, lay on the route. On day five came the event's most spectacular test, a head-to-head kayak race through seven kilometres of the Nam Hinboun River underground in the Kong Lor cave, watched by villagers in boats made from old B-52 fuel tanks. The stage ended in Vientiane on 28 April with Martin Dreyer in the leader's yellow jersey, after the field had finished renovating the Ban Nahai primary school half an hour from the capital.

Stage 2 left Vientiane on 30 April for the karst around Vang Vieng, with a steep rutted 4x4 hill climb, up into the mountains to Luang Prabang, where on 4 May Timokhin took the individual lead; Russia and Belgium, paired as Timokhin and Kris Janssens, won almost everything that week. The convoy flew from Bangkok to Rio de Janeiro for the Stage 3 start on Copacabana Beach on 7 May, the Freelanders driven on the sand with Sugarloaf behind, then sixteen hours later flew again to Santa Cruz in Bolivia, where a brass band met them at Viru Viru airport. In Discovery 3s the route ran from Terevinto to the colonial farming town of Samaipata and down the Ruta del Che to La Higuera, the village where Che Guevara was captured and executed, ending on a river beach below the Santa Rosa bridge on 12 May and with a rest in the whitewashed colonial city of Sucre, where the teams repaired a 1938 school at Tarabuco.

Stage 4 began on 14 May with a transit over a mountain road to Potosí at 4,100 m and out onto the altiplano; two competitors were pulled out of the Stage Start Competition on the Salar de Uyuni by altitude sickness, and flooding at the salt lake's southern end forced changes. Timokhin lost a whole day's score for losing his electronic dibber. In a gorge outside Tupiza on 19 May the top four — Dreyer, Janssens, Jean-Baptiste Calais of France and Timokhin — qualified for a 25-minute Challenge Final in a river bed near the Argentine border, which Dreyer won on 20 May; the awards were given in Tarija, where the UK's Brian Reynolds, a train engineer from Chesterfield, took the Team Spirit Award. All 134 Range Rover, Range Rover Sport, Discovery 3, Freelander and Defender vehicles were standard cars fitted with Land Rover accessories, roof racks and underbody protection, and a workshop team travelled with them. The Defender 110 Td5 station wagons — 31 prepared, 29 used — never carried competitors but ran on every stage as recce, communications, film, photography and medical cars, the doctors working from a fleet of specially adapted Defenders; in October 2006 one of them was donated to Earthwatch for its field research centre at Wamba in Kenya's Samburu region. A 2009 edition in Mongolia was cancelled in December 2008.

The vehicle

Imagery

The Salar de Uyuni from the cactus-covered Incahuasi island: the Stage 4 start competition of 15 May 2006 sent the teams by mountain bike, on foot and in their Land Rovers between the salt flat's islands at 4,000 m.
The Salar de Uyuni from the cactus-covered Incahuasi island: the Stage 4 start competition of 15 May 2006 sent the teams by mountain bike, on foot and in their Land Rovers between the salt flat's islands at 4,000 m.
DIEGO DELSO, WIKIMEDIA COMMONS · CC BY-SA 4.0 ↗
Inside the Kong Lor cave in Khammouane, Laos, where the Nam Hinboun runs seven kilometres underground — the course of the head-to-head kayak race of 27 April 2006.
Inside the Kong Lor cave in Khammouane, Laos, where the Nam Hinboun runs seven kilometres underground — the course of the head-to-head kayak race of 27 April 2006.
ALEKSEY GNILENKOV, FLICKR VIA WIKIMEDIA COMMONS · CC BY 2.0 ↗

The team

Martin DreyerWinner — South Africa, adventure racer and kayakerKris JanssensSecond — BelgiumJean-Baptiste CalaisThird — FranceDmitry TimokhinFourth — RussiaEleonora AudraFifth — BrazilAlina McMasterSixth — AustraliaPablo BurratiniSeventh — ArgentinaTolga SenefeEighth — TurkeyGabriel MaldonadoNinth — SpainGary RobertsonTenth — IrelandBrian ReynoldsTenth equal — United Kingdom; Team Spirit AwardMichael TsaoutosTwelfth — GreeceClaribett VegaThirteenth — Costa RicaThijs MaartenseThirteenth equal — NetherlandsTakashi SugiyamaFifteenth — JapanRobert SchweigerSixteenth — GermanyMarco MartinuzziSeventeenth — ItalyVictor HuangEighteenth — TaiwanSimon DayCompetition DirectorRikard BeckmanEvent managerPhil JonesLead driving instructor, Land Rover ExperienceMike IraniExpedition doctorDominik DoerrDoctor, air repatriation

Organised by Land Rover. Supported by Goodyear and Warn and Mantec Services.

Online

The expedition's own presence on the web, checked when the record was last updated.

Books & films

Land Rover G4 Challenge 2006 official press releases and stage maps
Land Rover, collected by the G4 Owners Club · 2006

Sources

12006 G4 Event: Official Press Releases and News (PDF) ↗ (accessed 2026-09-16)LAND ROVER / G4 OWNERS CLUB2About the Challenge: 2006 Challenge ↗ (accessed 2026-09-16)G4 OWNERS CLUB3About the Vehicles: 2006 Challenge ↗ (accessed 2026-09-16)G4 OWNERS CLUB4G4 2006 spec sheet — Defender 110 CSW Td5 (PDF) ↗ (accessed 2026-09-16)G4 OWNERS CLUB5Land Rover G4 Challenge ↗ (accessed 2026-09-16)WIKIPEDIA
RELATEDExpedition record updated 16 September 2026 · status: researched