Welcome to Building The Legend

 

 

tera V12 quad-cam
the engine it always deserved

Proudly hand-built close to Jaguar's spiritual home in Coventry, bespoke and tailored exclusively for you.

Welcome  ·  Building The Legend  ·  Coventry, England

From small beginnings in Coventry. A legend rebuilt.

Meet Neville Swales — a self-taught engineer who left the brewhouse for the workshop, and devoted his life to recreating the lost Jaguar XJ13 with toolroom-level precision.

Neville Swales, founder of Building The Legend
Neville Swales, Founder of Building The Legend.

Recognition

Recognised by the International Historic Motoring Awards

Finalist — Car of the Year, International Historic Motoring Awards 2016

2016 · Car of the Year

Finalist — the XJ13 recreation

Finalist — Specialist of the Year, International Historic Motoring Awards 2023

2023 · Specialist of the Year

Finalist

Finalist — Bespoke Car of the Year, International Historic Motoring Awards 2024

2024 · Bespoke Car of the Year

Finalist

The founder

From brewer to engineer.

Neville Swales didn't follow a conventional path into engineering. He began his working life in the family brewing business — but his real passion was always the cars that captured his imagination as a boy.

Settling in Coventry, the spiritual home of Jaguar, he taught himself his craft and set about building something no one else had: a meticulous, cross-referenced database of lost Jaguar history, pieced together from factory drawings and the people who built them.

That single-minded obsession turned a self-taught enthusiast into a respected recreator of lost motoring history — and gave rise to Building The Legend.

Neville Swales, founder of Building The Legend

The obsession

The Jaguar XJ13: a legend Neville couldn't leave alone.

Jaguar built only a single XJ13 — a mid-engined V12 Le Mans prototype that crashed during testing on 20 January 1971 and was later rebuilt in modified form.

Neville's journey truly began with a chance discovery: an original, rare Jaguar quad-cam prototype engine. Working with members of the original 1960s XJ13 build team, he verified it was the most highly developed prototype unit left from the era.

Rather than settling for a cosmetic replica, Neville built a true toolroom copy — recreating the XJ13 exactly as it left Coventry in 1966, using original factory drawings and the exact suspension geometry designed by Malcolm Sayer.

The finished recreation became a finalist at the 2016 International Historic Motoring Awards, competing directly against legendary factory race cars like the Le Mans-winning Ford GT40 and original Le Mans Jaguar D-Type.

Born from the XJ13

The tera® quad-cam V12.

Out of the XJ13 project came the tera® — Building The Legend's own bespoke, normally-aspirated 6.1-litre quad-cam V12.

It's inspired by the legendary 1960s V12 racing engines of Ferrari, Lamborghini, and Claude Baily's original quad-cam design for Jaguar — and it now sits at the heart of every build that leaves the workshop.

Explore the tera® V12 engine →
6.1-litre
Normally aspirated
V12
Quad-cam
350+
Horsepower
8,500
RPM

Our builds

What we build.

Custom creations and restomod builds, engineered in Coventry and made to order.

1966 Le Mans Prototype

Continuing builds of Neville's internationally acclaimed XJ13 toolroom recreation, for collectors worldwide.

E-Type Reimagined

Handmade, ground-up commissions indexed to the original 1961 E-Type lines — fitted with the tera® V12. From £215,000.

tera® V12 engine

The bespoke 6.1-litre quad-cam V12, built to order and hot-tested before delivery. From £75,000.

Bespoke coachbuilding

Brand-new, handmade body shells tailored strictly to your specification — typically 8 to 12 months.

Modern integration

Authentic 1960s icons, quietly updated with speed-sensitive steering, electric handbrake, central locking and proximity sensors.

Tailored ergonomics

Interiors made by hand, with seats and pedals positioned to fit your exact height and reach. It's the ride of your life.

Enquire

Tell us what you want to build.

From a bespoke interpretation of a lost legend to a tera® V12 for your own project — tell us about your build and we'll come back with a tailored proposal and quote.

  • No obligation — advice and a quote, not spam
  • Restorations, coachbuilding and engine work discussed
  • We reply personally to every enquiry

Enquire now

 

Prefer to talk?  +44 (0)7916 445253