2013 Kode9 Concept by Ken Okuyama

Ken Okuyama is an automobile designer who worked as Creative Director at Pininfarina supervising the designs of the Enzo Ferrari and the Ferrari Rossa Concept. As Creative Director Ken oversaw other projects including the Ferrari 599, Mitsubishi Colt CZC, Maserati Birdcage 75th and Ferrari P4/5. Before moving to Pininfarina, he worked for General Motors and Porsche, helping design the new generation Porsche 911 (aka 996) as well as the Boxster. During the first tenure at GM in the early 1990s, he was in charge of designing the Camaro and the C5 Corvette. 

In 2006, Okuyama left Pininfarina and set up his own design firm. In 2008, he presented his first concept car under his own name - the K.O. 7 Spider, a carbon fiber and unpainted aluminum two-seater. In 2013, Ken Okuyama unveiled the Kode9 sports car Concept at the 43rd Tokyo Motor Show. The chassis has a central section constructed of aluminum, with carbon-fiber construction at the front and rear. Powering the vehicle is a 370-hp HKS-supercharged 2.0-liter engine that looks to be of Honda extraction. The total weight of the car is just 1,962 pounds. (wikipedia & autoblog.com)

(Photos from kenokuyamadesign.com & autoblog.com)

2005 Maserati Pininfarina Birdcage 75th Concept

The Maserati Birdcage 75th was a concept car 

created and designed by Ken Okuyama and Pininfarina design team.

It was first introduced in 2005. It was named to honor the classic 

Maserati Birdcages of the 1960s and Pininfarina's 75th anniversary.

The Birdcage 75th was built on the carbon fiber chassis of a Maserati MC12 GT1. 

Powered by the 700 bhp Ferrari/Maserati F140 V12 engine from the MC12 and the Enzo.

The Birdcage also lacks doors; instead, a bubble canopy

 composed of much of the front bodywork can be raised. 
The cabin has a Head-Up Display (HUD) which is 
projected on to a clear panel raised in the centre of the dash.
(wikipedia)

(Photos from autowp.ru)

The Maserati Tipo 61 (commonly referred to as the Maserati Birdcage) 

is a sports racing car of the early 1960s. 

The car was produced between 1959 and 1961 

by Maserati for racing in sports car events.

It used an intricate tubular space frame chassis, 

containing about 200 chro-moly steel tubes welded together, hence the nickname "Birdcage". 

This method of construction provided a more rigid and, 

at the same time, lighter chassis than other sports cars of the time.

Tipo 61 was the most well known model, but 5 different models were designed. 

All based on an intricate multi-tubular frame concept.

(wikipedia)

Tipo 60 (1959-60)

Featured a small 2-liter 4-cylinder front engine of 200 hp.

Tipo 61 (1959-60)

Featured a 2.9-liter 4-cylinder front engine of 250 hp.

Tipo 63 (1961)

Tipo 63 first used a 4-cylinder mid-engine, then later a V12.

Tipo 64 (1961)

Featured the same 3-liter V12 as the Tipo 63 with an upgraded frame.

Tipo 65 (1965)

Featured a V8 engine of 5 liters delivering about 430 hp.