Petrolicious Pick: Lancia Delta S4 Group B

28 July, 2016

When a new video drops on the Petrolicious YouTube channel, we’re always excited to see what it’s all about. Recently we wrote an article on the Renault 5 Turbo, and asked the question of whether the Renault 5 Turbo was the ultimate ’80s hot hatch? The response from the readers was a loud one: no, nothing would beat the Lancia Delta. For John Campion, who immigrated to America in June 1984 — with only $26 in his back pocket — the Lancia range of vehicles was his choice of vehicle, too. 

After a few “lucky breaks” as he describes them, John was able to become a successful businessman in America. This meant, for his automotive passion, he was able to collect vehicles from his youth, mainly focusing on rally cars. And because the best rally cars that were ever produced were made in the ’80s, this is where his collection began. 

When you look at the specs of the Lancia Delta S4 Group B, they’re nothing short of phenomenal. The road-going Delta S4 weighed in at 1200kg, whereas the Group B version weighed in at a mere 890kg. This alone would aid in serious performance gains, however Lancia also wanted to work their magic on the engine. By pioneering twin-charge technology, Lancia was able to extract massive horsepower and response from their mid-mounted 1.7-litre engine. As turbochargers in the ’80s were nowhere near as sophisticated as they are now, if you wanted big power, it came at the expense of turbocharger lag.

Utilizing a supercharger with a bypass valve, Lancia was able to have almost instantaneous boost pressure at any rpm. Once the turbocharger was on full boost pressure, the bypass valve would cut the supercharger out of the equation. Official horsepower figures of the Group B version were 480hp, while some sources implied it was closer to 560hp. During testing, the Lancia’s engine managed to handle five bar (72psi) of boost pressure, with 1000hp as a result. 

We recommend turning the volume up for this one, so you can best enjoy the Group B sound! 

Luxury by design

How do you define luxury? To some it is being blinded with all manner of technological wizardry, from massaging heated seats to being able to activate everything with your voice, be it the driver’s side window or the next track on Spotify. To others, the most exorbitant price tag will dictate how luxurious a car is.
For me, true automotive luxury comes from being transported in unparalleled comfort, refinement, and smoothness of power under complete control. Forget millions of technological toys; if one can be transported here and there without the sensation of moving at all, that is luxury — something that is perfectly encapsulated by the original Lexus LS400. It was the first truly global luxury car from Toyota, and one that made the big luxury brands take notice.

NZ Classic Car magazine, January/February 2026 issue 403, on sale now

Morris’ ground-breaking, world-beating, Minor
It was Britain’s biggest small car, and it got Britain mobile again.       Morris Motors celebrated its millionth Minor in December 1960, a car that defined the British motor industry, and was in production for 10 years alongside the iconic Mini of 1959.
Whakatane dentist John Twaddle has a passion for Morris Minors going back to 1982, and he still has his first example. There are now three ‘Morries’ in his garage. One, however, is quite special, a rare ‘Minor-Million’. 
One of just 350 made commemorating the millionth Morris Minor produced, the first British car to hit a million units, the well-rounded little Brit’ would end production in 1971with a tally of over 1.6 million units.
John finished his Minor Million six years ago, resplendent in lilac, its official factory colour. He calls it his ‘Minor Resurrection’, and it has won numerous awards.
This summer edition also comes with our annual FREE classic car calendar, a must for every garage wall.
Every issue comes with our FREE huge wall poster; this issue, our poster is of a couple of garage mates, a 1957 Ford Ranchero and a 1968 Lincoln Continental.