2020 BAC Mono

The Monos ran to 128 cars, with this particular example having chassis number 119.

That makes it one of the last of the models produced and, as such, it came with all manner of electronic upgrades and other bits and pieces, including an electronic handbrake, traction control, auto-up gearshift, launch control, and improved gearbox software, which is not retrofittable to the earlier cars.

But this one was specified with an additional £60,000-worth of options.

In case you’re wondering, and you are, here’s the full spec for this epic machine.

Pour yourself a drink.

Find a comfortable chair.

Consider, digest and interpret the following words.

The £60,000 of upgrades includes…

•    Carbon-fibre hybrid wheels
•    Carbon-fibre lower body 
•    Carbon-fibre weave rear wing
•    Carbon-fibre steering wheel
•    Carbon-fibre interior cockpit
•    Fully plumbed-in fire suppression system
•    De-catalytic exhaust system (original system is with the car)
•    Lightweight battery with trickle charger
•    Custom seat
•    Custom wheel grips
•    Race dual geometry and camber shims
•    Track specific gears (originals also supplied)
•    Fitted interior car cover
•    Cockpit storm car cover
•    Twin spoke mirror arms 
•    Spare set of OZ alloy wheels with Kumho tyres
•    Full, double thickness PPF (paint protection film)

And the general specification is as follows…

Dimensions and Weight

•    Overall Width: 1836 mm
•    Overall Length: 3952 mm
•    Height: 1110 mm
•    Wheelbase: 2565 mm
•    Ground Clearance: 100 mm (f), 110 mm (r)
•    Weight: 580 kg
•    Power to Weight: 525 bhp per tonne
•    Weight Distribution: 48% (f) / 52% (r)

Engine

•    2.5-litre Mountune normally aspirated, 4 cylinder, in-line, semi-structurally mounted
•    Number of valves: VVT
•    Bore x stroke: 89 mm x 100 mm
•    Maximum Power 305 bhp
•    Maximum Torque 308 Nm
•    Construction: forged connecting rods and forged pistons
•    Lubrication system: dry sump with internal scavenge pump
•    Camshafts: performance inlet and exhaust camshafts and uprated valve springs
•    Induction system: gas flowed cylinder head with individual butterfly port throttles
•    Intake system: BAC / ITG aero-optimized carbon inlet, remote filtration system and carbon airbox
•    Engine management: Specialised Control Systems Delta 880
•    Safety: master kill switch
•    Traction control
•    FIA compliant plumbed-in fire extinguisher system
•    Clutch: AP Racing
•    Intelligent launch control

Fuel System

•    Construction: custom alloy fabrication with internal baffles and collector system
•    Capacity: 35 litres
•    Fuel pump: ATL in-tank high-pressure fuel pump, with two-stage filtration
•    Filler: lockable billet aluminium filler cap

Gearbox and Driveline

•    Model: Hewland FTR, fully stressed with integral engine oil tank
•    Type: 6 speed sequential
•    Differential: Powerflow LSD
•    Lubrication: splash
•    Gear selection: pneumatic semi-automatic closed-loop system operated via steering wheel-mounted paddles
•    Shiftec valve block
•    Switchable auto up-shift
•    Driveshafts: GKN / BAC-developed, low friction

Steering and Suspension

•    Steering: BAC / Titan developed high-ratio rack, 1.7 turns lock-to-lock
•    Type front: adjustable pushrod activated twin wishbone system with needle roller-bearing mounted bell cranks, rising rate, optimized camber change and roll centre position, full Ackermann geometry, shim adjustable camber
•    Type rear: gearbox mounted, adjustable pushrod activated twin-wishbone system with needle roller-bearing mounted bell cranks, rising rate, optimized camber change and roll centre position, shim adjustable camber
•    Wishbones: TIG welded seamless CFS3 steel aero tube twin-wishbone
•    Uprights: ultra-light, billet aluminium uprights front and rear
•    Dampers: two-way adjustable Sachs racing RDS - 36 Formula system
•    Springs: race-spec Eibach 280lb front and 325lb rear
•    Rising rate jounce rubbers
•    Anti-roll bars: front and rear torsion bars

Vehicle Construction

•    Body type: ultra-lightweight carbon fibre / foam sandwich
•    Safety cell: 2nd generation 'optimised' chassis for increased interior space
•    TIG welded cold-drawn seamless tube
•    RACMSA & FIA compliant ROPS
•    Carbon-fibre crash box
•    Side impact structure
•    Aero: BAC / FKFS – developed and tested low-drag aero package
•    BAC-developed cockpit aero screen

Brakes

•    Calipers: AP Racing, Formula Car Caliper - radial 4 piston (f & r)
•    Discs: AP Racing, 295 mm ventilated discs, crossed-drilled, billet, machined mounting bells (f & r)
•    Master cylinders: AP Racing pedal box mounted, differential bore, dual circuit
•    Parking brake: electronic parking brake
•    Pedal box: BAC designed and developed, adjustable, billet, floor-mounted pedal box with ball-bearing mounted billet pedals
•    Brake bias: AP Racing cockpit adjustable brake bias

Interior

•    Seat: Tillett / BAC developed, fixed position, carbon-fibre
•    Trim: ‘Extreme’ waterproof leather, Microcare MC waterproof ‘suede’
•    Steering wheel: BAC developed 290mm diameter billet aluminium housing
•    GEMS LDS4 colour display system
•    Illuminated switchgear
•    6-pin quick-release steering boss
•    Touch sensitive starter button
•    Seat belts: Willans 5 / 6 Point Harness, FIA compliant

As our American cousins would say, it’s built to the hilt.

But don’t just take our word for it.

Take Tiff Needell’s: “BAC Mono is one of the most beautifully built, exquisitely engineered cars money can buy.”

The vendor has owned the car for two years, having previously owned a 2.3-litre Mono in which he clocked up an impressive 11,000 miles.

This car is currently showing 4,095 miles on the odometer and the vendor believes that his contribution to that number has been mostly earned on twisty ‘B’ roads, often on the way to Mono owner’s club meets at Anglesey, with the rest of the mileage coming from 3 or 4 track days.

Why did he buy this particular example? Because the people at BAC said it was probably the best used example of the model out there.
 

The condition of the bodywork is entirely beyond reproach.

Everything is straight, flush, even, consistent, solid and sound.

If you can find a few stone chips anywhere, and you’ll have to look hard to find them, rest assured that they are only troubling the double-thickness PPF and haven’t got anywhere near the underlying carbon-fibre.

Where you’re not seeing deliberately visible carbon-fibre, you’re looking at carbon-fibre wearing a few coats of bright, shiny, lustrous ‘Aston Martin Skyfall Silver’ paint.

The carbon-fibre rims are reassuringly free of any damage and really do look superb.

They are shod in brand new Kumho Ecsta V700 rubber - 205/40 R17 at the front, 245/40 R17 at the rear.

There is another set of OZ alloy wheels with Kumho tyres accompanying the car.

The car’s badging, decals, lights, lenses, aero-screen and other exterior fixtures and fittings are all in first-class condition.
 

It’s a single-seater, track-focussed, ultra-lightweight machine, so you won’t be surprised to learn that it doesn’t have much to offer by way of cup holders, ashtrays, picnic tables or entertainment consoles.

What it does have is a supportive but surprisingly comfortable seat, a driving position that wouldn’t be unfamiliar to Max Verstappen, and a pared-back spartan functionality that, commendably, hasn’t been achieved at the expense of form or aesthetics.

The ‘door’ cards each have a small, zipped pouch that’s just about big enough for storing a wallet or a mobile phone (but not both in the same pouch at the same time). 

We didn’t press every button or tweak every toggle, knob or switch on the very F1 removable steering wheel but, as far as we can tell (and from what the vendor says), everything does precisely what it’s supposed to do. 

There are no signs of wear anywhere in the interior that we can see. 
 

Everything that we can see in the engine bay is as clean, dry, right and proper as you would hope and expect to find.

That said, we can hardly see any of the engine and would have to start taking off some of the body panels in order to gain access.

The undersides of the car appear to have plenty of structural integrity and we’ve seen nothing at all to make us doubt the car’s character or honesty. 
 

Recent service history includes engine oil, filter and gearbox oil change in June 2025 by BAC.

Most recently, BAC gave the car a comprehensive, 10-hour check over, tuned the engine and gearbox, replaced the catalytic converter (the original comes with the car), and put it through an MoT test which, needless to say, it passed with flying colours and no advisories whatsoever.

This UK registered and fully road-legal car is fitted with a CAT 5 Scorpion tracker system with 3.5 years’ subscription remaining.

It comes with the following.

•    2 keys and immobiliser fobs
•    Instruction manual on USB stick
•    Scorpion tracker card
•    Titanium wheel bolt set and key
•    Brand-new Kumho Ecsta V700 tyres
•    Second set of OZ ultralight alloy wheels and Kumho V70a tyres
•    2 x engine and gearbox dip sticks
•    Race jack
•    2 x race stands
•    Lithium charger
•    Towing strap

 

The BAC Mono 2.5-litre in ‘W’ configuration is a car that prompted most of the motoring press to go out and find some more superlatives with which to describe it.

Everyone agreed that it took off like a jilted warthog who’d just caught sight of his love rival.

Everyone agreed that the grip, balance and roadholding were enough to make most people recalibrate their understanding of the laws of physics.

When Jay Leno drove it he just kept saying, “Amazing!” and “Oh yeah!” repeatedly – sentiments with which pretty much everyone agreed.

And this example is about as minty fresh and squeaky clean as a used car can be.

Today, buying a new, similarly specified Mono X would set you back somewhere in the region of £285,000 + options.

Which is rather more than it will cost you to buy this car.

We gave Top Gear the opening paragraph, and we’re giving them the closing one, too.

“And all we can say is, if you like driving, slave away and work every day of your life until you make enough money so you can afford one.”

Enough said.

We are happy to offer this car with a BUY IT NOW price of £115,000 which includes the buyers premium.

Viewing is strongly encouraged, and this lot is located at Bonhams|Cars Online HQ. Viewings are STRICTLY BY APPOINTMENT and we are open weekdays between 10am - 12pm or 2pm - 4pm. To make a booking, please use the ‘Enquire About This Vehicle’ button on the listing. Feel free to ask any questions, or try our ‘Frequently Asked Questions’.