Big Jeep

Sheikh Hamad bin Hamdan Al Nahyan Had already had a huge replica of a Dodge Power Wagon in his garage before deciding to add a Jeep. At 21 feet tall it is four times as large as the original. It is all metal and the driver sits behind the grill. While the cost of the project wasn't revealed the earthmover tires can cost as much as $40,000 each. Read more about the Jeep as well as the Power Wagon at ThrottleExtreme.

1991 Colani Stingray

 Designed by Luigi Colani. Due to its shape it was suggested that it produced two tons of downforce without the typical wings and air dams normally used. The Stingray is part of the permanent collection of the Centre Pompidou in Paris.

Rock n' Roll

 

Hunter brothers

In June 1930 John and Kenneth Hunter set a world record for a non-stop airplane flight. Their brothers Albert and Walter flew Big Ben, the support plane that was responsible for refueling. While the record flight was limited to circling the Chicago area they were airborne for 23 days (553h 41m 30s). The distance flown was equal to approximately one and a half times around the earth.

They flew a Stinson-Detroiter and the flight might have gone on longer but technical issues forced them to land on July 4, 1930. There was an external catwalk on the fuselage that allowed Kenneth access to the engine and external components of the plane. He did repairs, oiled engine parts and replaced pieces while tethered to the catwalk.

Messerschmitt KR200 Sport

The Messerschmitt cars came about after World War II. Restrictions imposed after the war prevented Germany from engaging in various industrial activities. The former Messerschmitt airplane factory turned to making the three wheeled Messerschmitt car in 1955.  30,286 cars had been made when production ceased in 1964. The rarest was the Sport model which did not have a roof or doors and came with a cut down plexiglass windshield.  

The example above was Messerschmitt's effort to showcase the durability of the KR200. This car was prepared to make a run at the 24 hour record for three wheeled cars under 250cc displacement (15 cubic inches). The engine was highly modified and was fitted with a special single seat aerodynamic body. The record was set in August 1955. The 24 hour run broke 22 international speed records in its class including the 24 hour speed record which it set at 64 mph (103 km/h).

Read more about the Messerschmitt at Wikipedia.

1958 Reitz Pinnaduo

I was unable to find much information on this automobile beyond it residing in Germany and most likely based on a Karmen Ghia. That is a lot of windshield!

 

1960 Didia 150

The one off Didia 150 was built over a seven year period (1953-1960). The body was hand formed aluminum by Ron Clark. It was assembled by four workers at Clark Kaiser Customs. The total cost was $93,647. It was sold to the singer Bobby Darin for $150,000. Adjusted for 65 years of inflation that would be $1,620,000 in 2025 dollars. More information on Wikipedia.