1912 Apperson Model 4-55: America’s “Jackrabbit” Performance Car of the Brass Era
1912 Apperson Model 4-55: America’s “Jackrabbit” Performance Car of the Brass Era The 1912 Apperson Model 4-55, known as “The Jackrabbit,” was a groundbreaking car....
- 1912 Apperson Model 4-55: America’s “Jackrabbit” Performance Car of the Brass Era
- The Apperson Brothers: Pioneers of American Performance
- The Apperson Model 4-55: Engineering Marvel of Its Time
- "The Jackrabbit": Marketing and Performance Reality
- Legacy of the Apperson Model 4-55 in American Automotive History
- FAQ
- What was the Apperson Model 4-55 known for during the brass era?
- Who were the Apperson Brothers, and what was their background?
- What made the Apperson Model 4-55 an engineering marvel of its time?
- What body styles and configurations were available for the Apperson Model 4-55?
- How did the Apperson Model 4-55 perform in terms of acceleration and top speed?
- What is the legacy of the Apperson Model 4-55 in American automotive history?
- What was the significance of the Apperson Brothers' transition from bicycles to automobiles?
- How did the Apperson Model 4-55 contribute to the pre–Model T era automotive landscape?
1912 Apperson Model 4-55: America’s “Jackrabbit” Performance Car of the Brass Era#
The 1912 Apperson Model 4-55, known as “The Jackrabbit,” was a groundbreaking car. It showed the innovative spirit of the Apperson Brothers Automobile Company.
In the early 1900s, the Apperson Brothers were famous for making reliable and strong cars. These qualities helped them stand out in the growing car industry.

Their cars, like the 1912 Apperson Model 4-55, were examples of their creative thinking. They mixed luxury with power, setting a new benchmark for early American cars.
Key Takeaways#
- The 1912 Apperson Model 4-55 was a significant performance car during the brass era.
- The Apperson Brothers were known for their innovative manufacturing approach.
- The “Jackrabbit” combined luxury and raw power, a unique feature for its time.
- Early American performance cars like the Apperson Model 4-55 paved the way for future automotive innovations.
- The brass era was marked by the introduction of powerful and reliable vehicles.
The Apperson Brothers: Pioneers of American Performance#
The Apperson Brothers started in the bicycle business. They moved to the car industry, focusing on speed and reliability. Their journey began in the late 19th century, when cars were new.
From Bicycle Shop to Automobile Innovators#
In Kokomo, Indiana, the Apperson Brothers began with bicycles. They used their knowledge to enter the car industry early. Their bike experience helped them understand the value of light and precise cars.

Building a Reputation for Speed and Reliability#
The Apperson Brothers quickly became known for fast, reliable cars. Their models had big engines and advanced transmissions. This made their cars popular among car lovers.
Their dedication to innovation and quality made them leaders in the American car industry. They inspired future generations of car enthusiasts.
The Apperson Model 4-55: Engineering Marvel of Its Time#
The Apperson Model 4-55 was a leader in the brass era. It had features that made it stand out. Its strong performance and dependability showed the Apperson brothers’ skill in car design.
Large-Displacement Engine Specifications#
The Apperson Model 4-55 had a large-displacement engine typical of the 1910s. It gave the power needed for daily driving and fun performance. Its side-valve engine was simple and reliable, marking a key point in early car engineering.
| Engine Feature | Specification |
|---|---|
| Engine Type | Side-Valve |
| Displacement | 55 cubic inches |
| Cylinders | 4 |
Advanced Transmission and Drivetrain Technology#
The Model 4-55 had an advanced transmission system for its era. It used a shaft drive for a smoother ride and less upkeep than chain-driven cars. This tech made the car reliable and strong.
Robust Chassis and Suspension Design#
The car’s robust chassis and suspension design were made for tough early 20th-century roads. They ensured a durable and comfy ride. The Apperson Model 4-55’s chassis supported its powerful engine, making it a well-rounded car.

“The Jackrabbit”: Marketing and Performance Reality#
The Apperson Model 4-55 was known as “The Jackrabbit.” It was a mix of speed, style, and luxury. This nickname showed the car’s real speed and appeal to those who loved luxury and fast cars.
Premium Body Styles and Configurations#
The Apperson Model 4-55 came in many premium body styles. It had sleek roadsters and elegant touring cars. Buyers could pick from open or closed bodies, for a more open drive or more comfort.

Luxury Appointments and Comfort Features#
Inside, the Model 4-55 had luxury and comfort. It had rich upholstery, wood trim, and metalwork. Its advanced suspension and design made for a smooth ride on rough roads.
Real-World Performance Capabilities#
The Model 4-55 was known for its performance. It had a powerful engine, advanced transmission, and strong chassis. This made it fast, with great acceleration and handling.
Acceleration and Top Speed Benchmarks#
The Model 4-55 was fast, with impressive acceleration and top speeds. Its engine was powerful, making it a thrill to drive.
Handling Characteristics and Braking Technology#
The Model 4-55 was also great to drive. Its chassis and suspension made steering precise and handling responsive. Its brakes were good for its time, stopping well when needed.
Legacy of the Apperson Model 4-55 in American Automotive History#
The Apperson Model 4-55 is a key part of American car history, known for its time in the pre–Model T era. It was a car that showed the creativity and love of early car makers. It helped the car industry grow and get better.
This car, called the “Jackrabbit,” was fast and had luxury features. It set a high standard for other car makers. Its strong design and new technology made it stand out.
Now, the Apperson Model 4-55 is a rare and valuable car. It’s loved by collectors and history fans. It shows the bravery of car makers like the Apperson brothers. It’s a big part of car history and is often in car books.
The Apperson Model 4-55 shows how American cars have evolved. It highlights the important role of early car makers in shaping the industry.
