Weekly Motor Fix: 1931 Bentley 4.5L

25 February, 2015

 

Despite my knowledge being a bit rusty when it comes to cars that are nearly 100 years old, I’ve always been a fan of old race cars. Previously I’d been scared to the point of tears at the thought of being inside one of the modern-day race cars, which was an oddity considering I was always surrounded by them and adored them, yet the thought of being inside one seemed like imminent death. With safety regulations and changes over the years, I really didn’t have a lot to worry about. Roll cages are now standard practice and the quality of safety never ceases to grow and expand.

However the race cars that I wasn’t scared of were the classics. They reminded me of Chitty Chitty Bang Bang and the thought of flying around the world. When I popped down to Caffeine and Classics on the weekend, I expected a quiet Sunday morning wander before lunch, but what I ended up seeing was quite beyond that. Seeing many Mustangs and little Minis, I had a good idea of what the majority of cars in attendance would be. I met up with a few friends and had a wander around the show, spotting a few oddities, and spotting a big green thing at the back by itself. Getting closer, a friend of mine said, “Check out the Bugatti over there!” The closer we got, the closer we realized the ‘B’ was for Bentley, not for Bugatti.

The front-mounted supercharger stood out like a sore thumb behind the headlights and horns. Working our way back through the engine, the bonnet strops, and into the cabin, it’s a remarkable sight, and a piece of engineering carefully restored and maintained to ensure it’s keep at such a high standard. It had grabbed my attention so strongly that I had to have a quick Google, which allowed me to figure out what I was looking at — a Bentley 4.5L Blower. Having once raced at Le Mans on an unsuccessful journey, the Bentley 4.5L Blower was renowned as being one of the first race cars to ever install a supercharger and, although not successful, it managed to create a stir in the circuit.

Driving one of these pre-World War II cars comes with a little more footwork than a modern car. With the accelerator situated in the middle of the floor and the brake off to the right, you’ve got to think a little harder than usual to ensure you’re not speeding up instead of slowing down. Then there’s the engine. What came as a surprise to me is that the 4.5(4)L engine is a single overhead cam straight-four, much like that of say a Honda D13B. Unlike a Honda however, there’s said to be around 40 Blowers left in original condition around the world with the market changing and the cars ageing. The owner was leaving as I was arriving however; strapping on his helmet and goggles, the man was all prepared for the journey ahead. It’s definitely not as easy as being in a modern-day car, but pedalling the Bentley beast around would certainly be an amazing piece of work to be associated with.

 

Motorman: When the top trio took to the road

What sort of cars did Chris Amon, Bruce McLaren and Denny Hulme drive when they weren’t on the race track? Motorman knows
Most top racing drivers do care about safety levels of road-going cars for everyday motorists and their all-round abilities behind the wheel. Jackie Stewart for one denied finding everyday driving boring. He took pride in giving his passengers the smoothest possible ride, and encouraged all drivers to actively engage in the task. They also make interesting choices for their transport away from competitive motoring.
Thirty years ago I spent a day with Chris Amon driving on lower North Island roads and I can remember those informative few hours as vividly as if they were yesterday. In 1983 Chris accepted a challenge from Toyota New Zealand to improve its locally assembled cars in a relationship that extended well beyond the end of New Zealand-built Toyota vehicles in 1997.

The Ayrburn Classic announces dates for 2026

Save the date: Friday 20 – Sunday 22 February 2026
That’s right. The Ayrburn Classic returns next February for what promises to be another world-class celebration, scheduled slightly earlier on the calendar to bask in Central Otago’s long golden evenings and late-summer glow. This festival will once again transform Ayrburn into a playground for car enthusiasts, food lovers, and seekers of high-end hospitality alike.
The 2025 edition set an incredibly high benchmark, and is fast becoming one of the leading reasons to visit Queenstown – amongst New Zealanders and international travellers alike. With over 250 classic and contemporary luxury vehicles on display – collectively worth more than $250 million – the festival was a visual and visceral feast for attendees.
Standouts included an $8 million LaFerrari, the latest Aston Martin Vanquish, and a fleet of dream machines from Rolls-Royce, Bentley, McLaren, and more. The event’s unique blend of elegance and accessibility attracted both seasoned collectors and casual admirers aplenty.