The Tokyo Motor Show has consistently become a venue showcasing strange new concepts for future mobility with a particular emphasis on environmental sustainability and social responsibility. As noble as the intent may be, it is very dull. This year, Japanese automakers including Nissan, Honda, Subaru, show that the joy of driving isn't dead yet.

There were plenty of exciting vehicles that were unveiled at the 2013 Tokyo Motor Show. The following are our top five:

1. Nissan IDx Freeflow, IDx Nismo: Nissan introduced the BladeGlider and IDx concepts this year, both of which are sensational hints to Nissan's future lineup. However, despite Nissan's claims of bringing the BladeGlider to production, we suspect limited marketability may end the pursuit prematurely. The Nissan IDx Freeflow and IDx Nismo, on the other hand, are very attractive things indeed.

Nissan's answer to the Scion FR-S, the rear-wheel-drive compact features a retro design that combines minimalistic simplicity. According to Nissan execs, the IDx is intended for the youngest generation of car buyers that seek a car that reflects a practical, frugal, and fun lifestyle. 

In particular, the Nissan IDx Nismo Concept is very exciting because its styling cues harken to the glory days of Nissan's BRE racing team. The BRE Datsun 510 was a star in the Trans Am racing series and played an effective role in establishing the Nissan brand in North America. According to Nissan execs, the Nissan IDx Nismo is looking to share the 197 hp turbocharged 1.6 liter engine found in the Nissan Juke Nismo.

2. 2015 Nissan GT-R Nismo: It wouldn't be a list without the ultimate Godzilla. The Nissan GT-R Nismo features uprated turbos that turn the power dial to the tune of 600 hp and 480 lb.-ft. of torque. A race tuned suspension, beefy anti-roll bar, Bilstein DamTronic dampers, and a new aero package with a new GT spoiler means the 2015 Nissan GT-R Nismo is capable of lapping the Nurburgring in just 7 minutes 8 seconds, astonishingly close to outrageously more expensive supercars.

3. Honda S660: Sporty kei cars are Honda's domain. The S660 concept is the result of unrestrained creativity among Honda's engineers. According to Honda CEO Takanobu Ito, the S660 "embodies the freewheeling thinking of young Honda engineers, who want to make a cool car that is unique to Honda." 

The Honda S660 Concept represents the spiritual successor of the Honda Beat, a Kei roadster favorite in the 1990s. The small mid-engine roadster concept features a tidy 0.66 liter three-cylinder engine that transfers just 64 hp to the rear wheels via a CVT transmission. The numbers may sound dreadful but Honda claims the S660 will weigh well below 2,000 pounds.

4. Kode9: We put this on our list simply for its beauty. Even if you don't know Ken Okuyama, you should be familiar with his work. Okuyama was a director at the famous Italian design studio, Pininfarina. Under his supervision, Pininfarina took on many designs including the Ferrari 599, Mitsubishi Colt CZC, Maserati Birdcage 75th, Ferrari P4/5 and the Enzo Ferrari. 

Now, the Ken Okuyama Design studio has unveiled a new lightweight sports coupe dubbed the Kode9, a modern interpretation of the classic Mach 5 of the Speed Racer manga. At just 4,140 mm long and at a weight of just 890 kg, the Kode9 is Japan's answer to the Lotus Elise. While information is limited, rumors suggest the Kode9 may get an HKS supercharged 2.0 liter engine from an unspecified Japanese make.

5. Subaru Cross Sport Design Concept: Essentially, you are looking at a raised Subaru BRZ shooting brake concept. The Juke crossover turned out to be a big hit for Nissan and this Cross Sport looks like its got the recipe down as well. 

According to Subaru, the CrossSport Desgin Concept is 4300 mm long, a mere 60 mm longer than a standard Subaru BRZ coupe. What's more, Subaru claims the concept weighs 1250 kg, nearly identical with the BRZ. Dark magic? Maybe. Cool? Definitely.

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