QUARTERMASTER
Built on purpose, not styled for show. The Quartermaster is INEOS Grenadier's double cab pickup, developed alongside the Station Wagon and proven through a million miles of global testing on the same full box-sectioned ladder frame, permanent four-wheel drive and galvanised steel construction.
Its boxy shape makes it easier to haul cargo, make repairs and fit custom accessories, while the cabin brings the same comfort and technology as the rest of the range.
Adventure Automotive is the official INEOS Grenadier partner for Northamptonshire and Oxfordshire, with showrooms in Northampton and Oxford ready to show you round one in person.
The double cab pickup, built for maximum versatility.
THREE WAYS TO SPEC YOUR QUARTERMASTER
FIELDMASTER
Design and comfort-minded
From £71,995.00†
The comfortable Grenadier pickup. Safari windows, 17" alloy wheels, leather trim, heated seats and a premium sound system for buyers who want genuine capability without giving up comfort.
TRIALMASTER
Equipped for extreme -off road
From £71,995.00†
The ultimate work-and-expedition pickup. Front and rear diff locks, a raised air intake, all-terrain tyres, an exterior utility belt, cargo bay utility rails and a 400W power take-off.
BLACK EDITION
Five-seat all-terrain 4×4. In black
The most desirable Quartermaster. Inky Black paint, 18" gloss black alloys, dark headliner, black leather interior, heat-reflective privacy glass and an access ladder.
SEE IT IN PERSON
ADVENTURE AUTOMOTIVE NORTHAMPTON
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northamptonsales@adventureautomotive.co.uk
01604 625435
Mon–Fri 08:30–18:00 · Sat 08:30–17:00 (Sunday hours — confirm)
ADVENTURE AUTOMOTIVE OXFORD
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oxfordsales@adventureautomotive.co.uk
01865 319050
Mon–Fri 08:30–18:00 · Open every other Saturday
(If you plan to visit on a Saturday, please pre book so we can confirm whether we are open.) Sunday closed.
FREQUENTLY ASKED QUESTIONS
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The Quartermaster has an 857kg payload and a 496lb tailgate capacity, with a 63.7-inch-wide load bed — built for tools, kit and cargo, not just people.
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The Quartermaster is INEOS Grenadier's double cab pickup, with an open load bed and drop-down tailgate instead of an enclosed boot — built on a longer wheelbase (3,227mm vs. the Station Wagon's 2,922mm) but sharing the same ladder-frame chassis, engine and off-road hardware.
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Fieldmaster is the comfort-led trim — Safari windows, alloy wheels, leather trim and a refined cabin. Trialmaster is built for serious off-road and working use, with front and rear diff locks, all-terrain tyres, a utility belt and cargo bay rails.
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Yes — both Adventure Automotive showrooms offer test drives. Book a test drive at Northampton by calling 01604 625435 or book a test drive at Oxford by calling 01865 319050.
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Fieldmaster and Trialmaster both start from £71,995 on manufacturer list pricing (checked 17 September 2026).
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A 5-year, unlimited-mileage warranty as standard, with 24/7 INEOS Roadside Assistance included for the first two years.