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Diana, number 14, cornering towards the camera in her A.C. Windscreens livery, kerb and gravel in the foreground

Diana.
For sale.

The Jochen Hahn-⁠built MAN TGX that won the 2022 championship — fast, reliable, and prepared by the team who race her.

WhatsApp John (opens in a new tab)Technical specification
Truck
MAN TGX
Year
2014
Built by
Jochen Hahn
Class
Division 1
Price

On application

Sold complete, less engine, gearbox and radio comms.

ProvenanceBritish Truck Racing Championship

A proven
race winner.

Diana was built by the renowned Jochen Hahn and won the 2022 championship before we bought her.

No expense has been spared keeping her ready to race, and she has proved a very fast and very reliable truck — a top-five finish every season since.

Season results
Championship won
2022
Our first season
2023
Owned since late 2022
Seasons with us
4
Every season with us
Top 5
Since 2023
Technical specificationAs of Sep 2026

On paper.
Every detail.

Built as a race truck and developed season by season. Ask us anything the specification does not cover.

Chassis & steering

Base
2014 MAN TGX, race-specific set-up
Front axle
MAN, twisted to 30° castor and 3° camber
Steering box
RBL race-specific
Steering linkage
Custom track rod, drag link and steering damper

Engine bay

Set up for
MAN D26 race engine
Recommended
Piedrafita — the truck is already set up for it
Included
Engine mounts, pipework and wiring to drop one in
Engine & gearbox
Not included — supplied by the buyer

Electronics & data

System
Full AIM data logging and management
Sensors
Brake temperature all round, plus brake pressure
Control
Speed control and full CAN control of all truck functions
Display
11-inch dash screen with multiple viewing options

Suspension & damping

Front springs
Hahn
Rear springs
Unit 8 Motorsport
Dampers
Racetivity two-way adjustable, all round — as run in the British, FIA, French and Dutch championships

Driveline

Rear axle
MAN 18t with differential and overdrive gear set
Rebuild schedule
Rear axle rebuilt at the end of every season
Half shafts
Machined to suit the differential

Cooling & brakes

Brakes
Fully water-cooled
Water tanks
200 litres
Intercooler
MAN V10, recently re-cored

Cockpit

Passenger seat
Fitted, with five-⁠point harness

Engine options

Choose your engine.

Tell us which way you want to go and we will share the contacts and everything we know about each package.

  • Drop in and race

    The truck is set up around the MAN D26 race engine. All engine mounts, pipework and wiring are part of the sale.

  • Piedrafita recommended

    Our recommendation is a Piedrafita engine, because the truck is already set up to run one. Other packages work too.

  • We help you source it

    We will pass on the contacts and everything we know about the engine packages available, whichever route you take.

Walk aroundInteractive 3D model

See her in 3D.

Number 14 in her current livery. The model is illustrative: the sale excludes the engine and gearbox.

Interactive 3D model of Diana, the Bowler Racing number 14 MAN truck

Drag to rotate the truck. Select the model first, then use the mouse wheel, pinch, or the zoom buttons to zoom. Keyboard users can focus the model and use the arrow keys.

Interactive 3D model of Diana, the Bowler Racing number 14 MAN truck

3D model: Race Truck (MAN) by LuizZed36, licensed under CC BY 4.0; modified for Bowler Racing.

Spares & support
Diana, number 14, strapped onto the bed of the red team transporter inside an arched workshop, ‘14 John Bowler’ on the transporter box
On the team transporter

You are not
on your own.

We have run this truck for four seasons. Whatever you need to keep her at the front, we can help with.

  • Spares and support package

    The truck can come with a comprehensive spares and support package, built around what you need.

  • We own the panel moulds

    We are happy to work with you and our panel suppliers to keep the truck looking top class.

  • Drive her before you buy

    Serious buyers holding a truck race licence can arrange to drive the truck at one of our test sessions.

In detail

View the full gallery
  • Diana’s open cab in bright sun, the window net fastened and the driver strapped in behind it, a column of partner logos on the door
    Cockpit, window net fastened
  • Two crew members working on wiring and a laptop inside Diana’s stripped race cab, surrounded by the roll cage
    Inside the race cabPhoto: Aaron Photography
  • Diana stripped in the workshop, a mechanic in orange overalls underneath and another crouched checking a phone
    Workshop rebuild

Enquire

Your next
race truck?

Message John Bowler on WhatsApp to talk specification, engine options and price, or to make a deal.

WhatsApp John (opens in a new tab)

07858 130316 — WhatsApp only, please

How it works

  1. Message John on WhatsApp

    Serious enquiries only, please — WhatsApp rather than a call.

  2. Talk it through

    Specification, history, engine options and price, direct with the team.

  3. View, inspect and test

    See her in person, and drive her at a test session if you hold a race licence.

  4. Agree the deal

    Spares package, panels and handover arranged to suit you.