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XJ-S Anniversary Special: Ed Abbott, Senior Development Engineer, XJ-S

XJ-S Anniversary Special: Ed Abbott, Senior Development Engineer, XJ-S

The Jaguar Enthusiast Podcast Sep 28, 2025 80 min
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About this episode

Celebrating the 50th anniversary of the Jaguar XJS, Ed Abbott, a key development engineer, shares his journey from apprentice to pivotal figure in the car's evolution. He discusses the challenges faced during its launch amidst the fuel crisis and the engineering innovations that defined the XJS, including its V12 engine and unique suspension. Abbott reflects on the car's legacy, its misunderstood reputation, and the camaraderie among Jaguar employees during turbulent times. His insights reveal the passion and pride behind this iconic model, making it a fascinating listen for enthusiasts.

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Technical Too Afraid to Ask
Term

V12 engine

"Over a period of nearly a quarter of a century in production, it evolved through V12's, straight six's, convertibles and special editions, carving out its own legacy."

A V12 engine is a type of car engine with 12 cylinders arranged in a V shape. It helps the car run smoothly and powerfully, often found in fancy cars.

Term

straight six engine

"Over a period of nearly a quarter of a century in production, it evolved through V12's, straight six's, convertibles and special editions, carving out its own legacy."

A straight six engine is a car engine with six cylinders lined up in a row. This design helps the engine run smoothly and evenly.

Term

convertible

"Over a period of nearly a quarter of a century in production, it evolved through V12's, straight six's, convertibles and special editions, carving out its own legacy."

A convertible is a car that can have its roof folded down or taken off so you can drive with the top open and feel the wind.

Brand

Jaguar Daimler Heritage Trust

"Jaguar enthusiast magazine has teamed up with our heritage partners, the Jaguar Daimler Heritage Trust, to track the human stories behind one of Jaguar's best-selling model ranges."

The Jaguar Daimler Heritage Trust is a group that looks after old Jaguar and Daimler cars and their history, making sure people remember them.

Car

Jaguar XJS

"As one of Jaguar's longest-running models, to celebrate its 50th anniversary, we're going to explore the highs, lows and lasting impact of Jaguar's misunderstood masterpiece, the XJS."

The Jaguar XJS is a fancy car made by Jaguar for long-distance driving. It was made for many years and came with different types of engines, including a powerful V12.

Concept

apprenticeship

"Thank you very much, Wayne. I'm great to be able to give you my angle on the development of the XJS. I feel very proud and sometimes humbled that I was in that position as an apprentice. And then within three years of my apprenticeship starting, I was in Jaguar experimental."

An apprenticeship is when someone learns a job by working with experts and practicing the skills, instead of just going to school.

Concept

experimental workshop

"And in the centre of the world that went on to development, I was lucky to first of all work in the experimental workshop as an apprentice. And then my next transfer took me into what was the experimental road test under the legendary Norman Dois."

An experimental workshop is a special place where new car ideas and parts are tested and worked on before they are made for real cars.

Concept

experimental road test

"And then my next transfer took me into what was the experimental road test under the legendary Norman Dois. And I was surprised at that move because he doesn't really like having people around him too much, especially if they didn't know what they were doing."

Experimental road testing means driving new car versions to see how well they work and if anything needs fixing before they are sold.

Term

driving permit (levels)

"And you can look out the workshop straight onto the engine ramps and of course at that time to drive any jaguar you had to have a driving permit and there were three levels of permit. You had a permit to start an engine which means you could sit in the car, start the engine but couldn't go anywhere. You had an internal permit which allowed you to drive around the factory and you had an external permit which meant you could drive on the road and literally a handful of people had external permits."

To drive a Jaguar car at the factory, you needed special permission. There were three types: just starting the car, driving inside the factory, and driving outside on roads.

Term

G-force (1.5 G)

"And when you go around the banking at a hundred mile an hour you're pulling about one and a half G and you suddenly realise you can't actually write when you're..."

G-force is the feeling of extra weight you get when a car turns fast. 1.5 G means you feel one and a half times heavier than normal.

Car

Jaguar E-Type

"When was the moment that you realised that this car that was in very different departments being testing was going to be the new Jaguar that was going to be the replacement to the E type, roughly speaking?"

The Jaguar E-Type is a famous old sports car that many people loved for its looks and speed. The XJ-S was made to replace it.

Part

alloy wheel

"The XS was going to be introduced on a 6 inch by 15 inch alloy wheel called the Ken alloy. And of course it was Jaguar's first ever alloy wheel. The first alloy wheel was on the C type or the D type I think in 54-55 but this was the brave new world of alloy wheels."

Alloy wheels are car wheels made from special light metals. They help the car drive better and use less fuel because they are lighter.

Term

fuel injection

"Well yes, the XJS adhered to the same V12 engine albeit with fuel injection which gave about 15 horsepower but it was 200 kilograms heavier than the E type."

Fuel injection is a way cars get fuel into the engine using small nozzles. It helps the car run better and cleaner than older systems.

Term

gear ratios

"We had to do some work on gear ratios just to get the thing off the line quicker. But we got there in the end and the first press tests were very encouraging..."

Gear ratios are how the car changes speed and power when you shift gears. Changing them can make the car start faster or go better on highways.

Concept

GT touring car

"It was a GT touring car perhaps rather than that sports car but supremely quiet and comfortable and a high-speed cruiser you know you could just jump in it and drive half way across Europe and come back again should you wish."

A GT touring car is a car made for long trips that is both comfortable and fast, but not as sporty as a race car.

Car

Jaguar Series 2 XJ

"The Series 2 XJ was coming out. The Series 2 V12 saloon was getting very close to being voted car of the year I think in 1976-1777 so that accolade you know for Jaguar of all the manufacturers in the world..."

The Jaguar Series 2 XJ is a fancy Jaguar car made in the 1970s. It was a popular and well-liked luxury car.

Concept

British Leyland

"The XJS or the sports car was slightly second fiddle and of course it was a huge time for Jaguar going through fundamental changes from losing its identity as Jaguar cars brands lane and becoming British Leyland."

British Leyland was a big company that owned many British car brands, including Jaguar. It had a lot of problems in the 1970s that affected the cars made then.

Concept

fuel crisis

"There was an awful lot going on politically and socially within Jaguar at the time of the launch and at the time I think most people were just hoping we were going to survive the fuel crisis which was killing the V12 engine full stop."

The fuel crisis was a time when gas became very expensive and hard to get. This made it tough for cars that used a lot of gas, like big engines.

Concept

carburetors

"In terms of suddenly we had a big lusty engine with quite poor fuel economy certainly on carburetors we had to sort that out and the XJS was launched in the middle of a fuel crisis..."

Carburetors are parts in older cars that mix gas and air so the engine can run. They aren't as good as newer fuel systems at saving gas.

Term

automatic transmission

"We didn't have a sporting XJS because there wasn't any manuals about because production was 95% automatic anyway and the XJS, you know, sold in modest numbers really in 75-76-77..."

An automatic transmission changes gears by itself so the driver doesn't have to do anything.

Term

manual transmission

"We didn't have a sporting XJS because there wasn't any manuals about because production was 95% automatic anyway and the XJS, you know, sold in modest numbers really in 75-76-77..."

A manual transmission is when the driver changes gears themselves using a stick and pedal, instead of the car doing it automatically.

Term

buttresses

"And the buttresses that gave aerodynamic stability were considered ugly."

Buttresses are parts of a car's shape that stick out near the back roof area to help the car stay steady when driving fast. Some people thought they looked ugly.

Concept

aerodynamic stability

"And the buttresses that gave aerodynamic stability were considered ugly."

Aerodynamic stability means how well a car stays steady and doesn't get pushed around by the wind when it's going fast.

Term

radio cassette

"and the other thing was that by 1975, we had things called radio cassettes and stereo transitions, transmissions."

A radio cassette is a car stereo that can play music from cassette tapes, which were like small plastic tapes with songs on them.

Term

rolling resistance

"Rolling resistance. We were measuring rolling resistance."

Rolling resistance is how much the tires push back when the car moves. If it's high, the car uses more fuel to keep going.

Term

emission legislation

"And so, and of course, the next thing is there's emission legislation coming in. There are lots of issues with housing castellists under the car and the heat, you know, heat impact."

Emission laws are rules that say how much pollution a car can make. Car makers have to make sure their cars don't pollute too much to follow these rules.

Concept

rolling road

"And then somebody decided that we could do this sort of test on a rolling road. Of course, every test now is actually done on a rolling road."

A rolling road is a machine that lets people test cars without driving them on real roads. The car's wheels spin on rollers so they can see how well it works safely inside a building.

Part

dampers

""And jaguars spent a lot of time with dampers and obviously the independent rear suspension, they've got four dampers, which means you can have a softer rate and still control the roll.""

Dampers are parts that help stop the car from bouncing too much when you drive over bumps, making the ride smoother.

Concept

homologation

"you must have a car that rallied in Peter, or at least was homologated for rallying in period,"

Homologation means a car is officially allowed to race in certain competitions because it meets the rules and has been approved by the racing authorities.

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