The 10 best Kei cars

Subaru 360

When Kei cars first appeared, regulations stipulated that their engines exceed no more than 360 cubic centimetres in capacity. With that, cars like the imaginatively named Subaru 360 appeared. It weighed just 454kg which in context, is half the weight of a Lotus Elise and around about the figure individual men have hoisted from the ground, above their heads, in recent deadlift world records. Not much, then, for the tiny little twin-cylinder engine to shift around. First introduced in 1958, 392,000 360s, including Custom, Convertible and sporty ‘Young’ models, were shifted in the 12 years it was on sale.

Mazda R360

If you think the Subaru is light, how about the Mazda R360. It comes under the 454kg 360 by 74kg, weighing just 380kg. Powered by a rear-mounted V-twin, the R360 was something of a stylish little coupe. In the period of its availability between 1960 and 1966, it was one of the most popular Kei cars on sale. It spawned a number of different versions, including the P360 sedans and even the B360 pickup.

Suzuki Jimny LJ10

Something you might find a bit more familiar, the Suzuki Jimny. Not exactly first conceived as a Kei car, Suzuki had to pull the external spare wheel into the interior to get the length inside three metres. It made it a three-seater, but in combination with the engine swap for a 360cc two-stroke, the LJ10 earned Kei car status. Originally assembled by hand, production was quickly ramped up after the model’s huge initial popularity. Granted, compared to our other entries thus far, it’s a comparative heavyweight, at a portly 590kg. But a Kei car it remained.

Suzuki Fronte Coupe

The Suzuki Fronte was not dissimilar in concept to the Subaru 360 but it’s the Coupe that came ten years into its life that we’re curious about. That swooping coupe window puts us in mind of the Lancia Fulvia Sport Zagato, or the Alfa Romeo Montreal. Curious, as it was Giugiaro, not Bertone, that offered the first pass at its styling. At this point, we’re over ten years into the Kei car genre, so weight is increasing. The Fronte Coupe was a hefty beast compared to the Kei car founding fathers, at 500kg.

Honda Beat

Jump forward to 1991 and what has to be one of the most famous Kei cars ever made. By now, we’re into the 660cc regulations. We’re also at the point where the makers of a type of car that’s usually rear-engined, means they can style them like mini supercars. The Honda Beat is just such a machine, with sporty Pininfarina styling, a drop-top and colour options more akin to Maranello than Suzuka. Its 656cc three-cylinder engine produced a healthy 64PS (47kW), thanks to its MTREC system and individual throttle bodies. It also revved over 8,000rpm. If that sounds not unlike a motorcycle engine, you wouldn’t be far off. The Beat was one of a number of sporty Kei cars to crop up in the 1990s and 2000s.

Suzuki Cappuccino

Alongside this, the Suzuki Cappuccino, the one Kei car that could claim to be more famous than the Beat. It too arrived in 1991 with a 657cc three-cylinder, with the additional help of a tiny little turbocharger, for a total of 64PS power output in line with Kei car regulations. It had a pop-out roof for the air in your hair experience. Though not initially intended to be exported, the Cappuccino did eventually reach UK shores, if only for a few short years and in tiny numbers.

Autozam AZ-1

The cause of making microscopic supercars came to a head with the Mazda Autozam AZ-1, a Kei car that almost perfectly emulated the archetypical early-‘90s small-production no-name supercar at half scale. It was mid-engined, with a familiar turbocharged three-cylinder also seen in the Suzuki Cappuccino. What, apart from the looks, made the AZ-1 stand out? Gullwing doors! Need we say any more? Actually, yes. Of all the latter-day modified versions of these cars, the RE Amemiya GReddy VI-AZ1 is a mad machine, swapping the three-pot out for a 20B Mazda rotary. It also got suspension upgrades similar to those found on the Porsche 962, and brakes from a Ferrari F40. Struth!

Daihatsu Copen

The car that got Clarkson a smack on the wrist for calling it ‘a bit gay’ is the Daihatsu Copen, Diahatsu’s coupe cabriolet Kei car of the early 2000s. It did trade out the rather rough and tumble looks of its early ‘90s equivalents in favour of a softer, rounded look. We rather like it. You know the deal by now, under 660cc but in this case, four cylinders working with a turbocharger, rather than three. Markets outside of Japan got a somewhat meatier 1.3-litre engine.

Honda S660

To read the spec sheet of a Kei car, you imagine pensioner-friendly econoboxes and indeed many are, especially as we move into the 2010s era. Yes, there’s a new-ish Daihatsu Copen from this era but it’s not all that appealing. What is, is the spiritual successor to the Honda Beat, the Honda S660. It’s a two-seat roadster not dissimilar in styling language to the current Honda NSX supercar. The caveat of course is that this is a Kei car, so it’s got a 658cc three-cylinder turbo, instead of a hybridised twin-turbo V6. It’s the only S-badged Honda roadster since the S2000 and doesn’t it just look superb.

Caterham Seven 160

Some Kei cars that were never intended for other markets made their way to lands beyond Japan. On the flip side, some cars never intended for classification as a Kei car, find their way in. This is perhaps the best example of the latter. Meet the Caterham 160, arguably one of the coolest unlikely Kei cars. With a Suzuki 660cc engine, a slim body and skinny tyres, it gets the already slight Caterham over the line as a Kei car in terms of regulations. The difference? Well, in Japan, it produces the regulation 64PS. In the UK, you get a heady 80PS (59kW). It won’t set your hair alight but with just 500kg to shift, it should be a riot.

Have we missed any quirky Kei cars? Which is your favourite? Let us know what you think.