By far, the bulk of passenger cars made these days are dependent on markets where people need and expect heaters in their cars. And they want quiet cars. A liquid cooled engine provides heated water to the cabin heater cheaply and effectively. Air cooled engines provide lots of heated air in summer, but not very much in winter. The VW Beetle did have a system for piping warm air from the engine into the cabin, but it lost effectiveness at cold temperatures.   So, for an air-cooled car to have an effective heating system, it would need an auxiliary heat source. Again VW provded one for their cars sold in cold climates. It was a little furnace heated by gasoline, and it worked. Trouble was, they tended to rust out after a few years. They also were not very efficient, using about as much gas as the engine.

Tsk, tsk, tsk.. Not so nice comment. I cant say these words to persons with disability or old age.

"And he said my car was nice" As he walked away tapping the floor with his white cane. 

Nothing derogatory towards blind folk intended.

If the tatra aircooled engine truck was a success, why didnt the automotive industries replicate them to smaller cars and suv's and get rid of radiators,fans and wet cooling system. There were indeed some hidden flaws in aircooled engines. And "some people" are in denial of it.

H2O has more mass than O2. To contain more heat and transport it away from the heat source.

Ps; on the lighter side, im at the starbucks right now , and a middle aged white guy came to me and asked if the car is mine(referring to the mini) i said yes and he immediately asked what was the ice chest in the back seat for, i said its my mini homemade A/C , i said inpit ice in it... He laughed as he walked his way to the counter. , i guess america is not yet totally ready for the comcept of renewable energy.

... And he said my mini is nice!

WHAT are you ON? Whatever it is, it is causing problems. See your doctor.

Then see the Tatra Truck website.

//www.tatratrucks.com/trucks/

Then see the page on their engines:

Tatra engines

The tatra engine is just sitting in the pedestal ALL it's life, and only runs at idle ,it has never been under load. A generic 13v electric fan can cool it down easily.. Jeeez!!!

 Interesting: 12.7 litre displacement, supercharger and (no surprise) an intercooler ("charge air cooler")

from Tatra website:
"TATRA engine

A direct air-cooled V8 diesel engine with direct fuel injection (cylinder spacing angle 90 degrees), displacement of 12.7 liters, supercharged using a turbocharger and charge air cooler positioned directly above the engine."

Oh and take a look at Tatra engines Tony BIG air cooled engines for BIG trucks............................

You really are a Pratt, and talking of Pratt's how about the Pratt and Whitney R-4360 28 Cyl Up to 4300hp now that's not two small is it............................

the idea of air cooled engines are only effective on scooters or motorcycles., where engines are small and heat can easily dissipated by moving air. Air cooling never works for bigger engines, ever wonder why people don't manufacture air cooled cars anymore?(no it's not about climate change) its because it's very prone to overheating and engine breakdown and loss of power.

https://youtu.be/pjId3bfMBUQ?list=PLsQXtiTRn6p0Hxx1RuUgQETu70MXN6iDY

Jonathan:
I was going to mention that the VW air cooled engine (and the Bug for that matter) was designed by none other than Ferdinand Porsche away back in 1934, and that the earlier Porsche 911 air-cooled engines are close cousins to the VW ones. But I thought that would be too much for Tony to absorb.
   

HUH??? you sold your Porsche 911 to buy a mini??? my goodness!! I love Porsche 911(carrera, the old version.) very sporty and very manly. hmmm yeah i also love the classic mini, but it lacks a little bit of a testosterone, that's why i try my best to make it look sporty and look more masculine. i plan to put roll bars, racing seats and straight pipe to make it more "ear splittingly loud"(what a word!!) and make people know that i am coming.... but don't get me wrong, i love the cuteness of my mini,I'm not planning to sell it.
And do you know how much the Porshe 911 costs???  fyi,some of them are $35K up...i saw one in california,  they are selling a Porsche 911 shell only, for $12K..they're not cheap, mind you!!






some people just don't have eye for class and beauty....... anyway!

Dan, I know you don't need my validation.
I see classic VW's, bugs, vans, notchbacks cruising around Phoenix area.
Maybe not daily, but several a week. Some older than our classic minis.
Yes, they are fine.
Main reason I sold my 911 (aircooled) was a P.O. completely removed the A/C from the car. Black car, black interior in Arizona, I knew I wouldn't enjoy it. 
I had bought a number of A/C items for it but didn't need another project.
Engine would have been fine, even with a  reprofiled cam.
Most of us know you're right.

No. NO OIL COOLER! And yes, it will last in Arizona, just as easily as an air-cooled motorcycle.

The German army used them quite successfully in WW2 in North Africa. The air-cooled engine (same design as VW beetle) was almost bullet-proof.

From WIKIPedia:

 

Among the design features that contributed to the Kübelwagen's performance were:

• Light weight, although some 41 cm (16 in) longer than the Willys MB, it was over 300 kg (660 lb) lighter.
• Very flat and smooth underbody, that allowed the car to slide over the surface it was traversing.
• Considerable ground clearance, roughly 28 cm (11 in), in part thanks to:
  • The use of portal gear hub reduction, providing more torque and ride height simultaneously.
  • Independent suspension on all four wheels.
  • Self-locking differential, limiting slippage and retaining traction.

Apart from that, the air-cooled engine proved highly tolerant of hot and cold climates, and less vulnerable to bullets, due to the absence of a radiator. For starting under winter conditions, a specially volatile starting fuel was required, contained in a small auxiliary fuel tank.

As the body was not a load-bearing part of the structure of the vehicle, it could easily be modified to special purposes.

The Kübelwagen could reach a top speed of 80 km/h (50 mph).

DO NOT FEED THE TROLL

DO NOT FEED THE TROLL

I also use this kit, it helps a little bit in cooling. And easy to install.

Wow!! That's all there is to cool that engine?? Some fins? And oil cooler? Wow! That thang will never never lasts in az.

Old rear-engined VW's had air cooled engines. The first picture shows the bare engine with auxiliary components removed. Note the fins on the cylinders, like lawn mowers, motorcycles etc. The second picture shows a fully assembled VW engine (the fan belt is missing). The big black dome is the fan shroud. Yes, they did have a big fan, which was ducted down onto all 4 cylinders. The fan belt ran from the big pulley on the crankshaft to the smaller one on the generator. The generator shaft was connected to the fan shaft. On the second picture, you can see the carb sitting on the intake header. The intake passage is the larger tube running horizontally across the engine and down to the intake ports. The smaller tube is a siamesed exhaust tube. It carried exhaust from one side of the engine to the other and was attached to the intake tube to provide heat to prevent icing of the intake system.

Maybe Richard1 can post pictures of the air-cooled Corvair engine, showing its similarities and differences. (I recall they had a much longer fan belt.)
.

Sir Humter im seriously considering to set up another radiator on board, btw does your second radiator has a fan?

To me, radiators and oil coolers have two different task. It cools two different departments. The radiator cools the engine blocks to avoid rupture of engine gasket caused by excessive heat. Oil coolers on the other hand keeps the oil temperature from rising to high, in effect it prevents oil from becoming too thin amd loose its lubricating power, if you notice , when cold , the oil pressureis high and gradually goes down as the oil thins as it gets hot. All minis should have both radiator and oil coolers.

Now here's a question: old VW beetle only uses oil coolers. No radiators, and yet classic VW dont overheat???? And moreso, VW engine is situated in the back of the car, no air draft to aid in cooling.

Does the mini engine really had a bad design?