Mazda

Eunos Cosmo 20B

1990-1995RWD

280 hp

0-100 in 6.3s

About the Mazda Eunos Cosmo 20B

The Eunos Cosmo is the only production car ever sold with a three-rotor engine, and the only Mazda with sequential twin turbos on 20B displacement. It made a claimed 280 hp because of Japan's gentlemen's agreement; the real figure was higher. It also had a colour touchscreen GPS system in 1990, years before anyone else.

HOW DOES IT SCORE?

Reliability55/100

Economy42/100

Insurance Cost55/100

Import Price75/100

Maintenance82/100

Practicality55/100

Parts Availability28/100

Maintenance & Reliability

Wrenching Headache Rating

10/10 · Heavy Wrenching

Triple-rotor 20B with twin sequential turbos — almost no one can service this properly.

Technical Specs

Engine

2.0L Triple-Rotor Twin-Turbo (20B-REW)

Drivetrain

RWD

Horsepower

280 hp

Torque

402 Nm

Weight

1640 kg

0-100 km/t

6.3s

Production Years

1990-1995

Investment Grade

MARKET ANALYSIS 📈

🇺🇸 USD

$34,390

🇪🇺 €31,550

📅 Last 12 months▲ +28%

📆 Last 5 years▲ +42%

Price history

$24,218

2021

$24,880

2022

$25,542

2023

$26,205

2024

$26,867

2025

$34,390

2026

Investment Grade · Strong

The Mazda Eunos Cosmo 20B (1990-1995) represents strong investment fundamentals, backed by bulletproof reliability (55/10) that owners routinely daily-drive and low running costs (82/10 maintenance). The RWD chassis has a loyal following among enthusiasts, and parts remain widely available (28/10). Right now values have climbed a steep +28.0% over the last 12 months, and a rarity score of 57/100 means you can afford to wait for the right car. Clean examples with documented service history command the highest premiums; modified cars typically sell for less than stock.

Price estimates are based on market research and recent sales data. Values fluctuate based on condition, mileage, and market demand. Not financial advice.

Owner Reviews

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