14 Japanese Sports Cars You Might Regret Investing In

By Tyler Grayson

While Japanese automakers are known for producing reliable and high-quality vehicles, not all models live up to this reputation. Here is a list of Japanese sports cars that we think may not be worth the investment due to performance issues, high maintenance costs, or outdated features.

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Mazda RX-8

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Praised for its innovative rotary engine, the Mazda RX-8 stands out with a unique driving experience. Unfortunately, the rotary engine’s known issues, such as apex seal wear that can lead to failure, make it a risky long-term investment. Owners may find themselves facing expensive engine rebuilds if maintenance is not meticulous.

Poor fuel economy, averaging 16 mpg in the city and 23 mpg on the highway, adds to the cost of ownership. This inefficiency makes the RX-8 expensive to maintain and less appealing compared to more modern, fuel-efficient sports cars.

Nissan GT-R (R35)

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Nicknamed “Godzilla,” the Nissan GT-R has earned a reputation for delivering jaw-dropping performance paired with cutting-edge technology. However, ownership often comes with hefty repair bills, particularly for its notoriously complex transmission system. A single transmission repair can exceed $20,000, making this car require serious financial commitment.

Beyond repair costs, the GT-R’s aging platform and outdated interior design diminish its appeal when compared to newer competitors. While still a beast on the road, its lack of modernisation in key areas makes it less attractive to those who value cutting-edge features alongside performance.

Mitsubishi 3000GT

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Celebrated in the 90s as a technological marvel, the Mitsubishi 3000GT boasted features like a twin-turbocharged V6 and all-wheel drive. Decades later, its complex engineering has become a maintenance burden, with rare parts and high labour costs making repairs increasingly expensive.

Performance-wise, the car’s heavy weight and dated handling leave it trailing behind modern sports cars. Enthusiasts often find that the costs and challenges of ownership outweigh its nostalgic appeal, limiting its viability as a long-term investment.

Toyota Supra (Mk3)

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Few cars capture the hearts of tuners like the Mk3 Toyota Supra, but even legends have their flaws. The 7M-GTE engine is notorious for head gasket issues, particularly if not maintained with the utmost care. Owners often face frequent and costly repairs to keep this car running at peak performance.

Its age is evident in the lack of modern features and dated handling characteristics. This means enthusiasts typically need to invest heavily in upgrades to keep it competitive with more modern sports cars, making it less attractive for those seeking an easy investment.

Honda S2000

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Praised for its thrilling high-revving engine and razor-sharp handling, the Honda S2000 remains a favourite among driving enthusiasts. However, early AP1 models, produced between 1999 and 2003, are known for issues with clutch cylinders and transmission synchros that can lead to expensive repairs.

In addition to mechanical concerns, sourcing replacement parts for this beloved roadster can prove costly. Maintaining an S2000 often requires a substantial budget, particularly for those who drive it hard on a regular basis, making it a challenging long-term investment.

Nissan 370Z

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While the Nissan 370Z offers a raw and engaging driving experience, its aging platform shows limitations. Poor fuel efficiency, averaging 19 mpg in the city and 26 mpg on the highway, makes it less appealing when compared to modern alternatives that offer better performance and economy.

The interior, lacking advanced tech and safety features, adds to the challenges of ownership. For buyers looking for a blend of performance and practicality, the 370Z struggles to keep pace in a rapidly evolving sports car market, leading to decreased desirability.

Subaru WRX

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With its rally-inspired performance and turbocharged engine, the Subaru WRX delivers a thrilling drive. However, reliability concerns often hold it back. Clutch and transmission wear are common issues, particularly in models like the 2015 edition, which can result in steep repair bills and frequent visits to the mechanic.

For buyers who value dependability, these maintenance challenges make the WRX less appealing despite its legacy in the performance car world. Keeping one in top shape requires dedication and a willingness to handle unexpected costs, which may deter potential owners.

Mazda MX-6

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As a sporty coupe, the Mazda MX-6 was once admired for its sleek design and engaging performance. Over time, common problems such as transmission failures and persistent electrical issues have tarnished its reputation. Owners frequently report issues that require costly repairs.

Finding replacement parts for this discontinued model can be a significant obstacle, further increasing the expense of ownership. Compared to modern sport coupes with more reliable features and support, the MX-6 struggles to justify its value and practicality.

Mitsubishi Eclipse (4th Gen)

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A heavier build and underwhelming performance marked the fourth-generation Mitsubishi Eclipse as a departure from its earlier glory. Suspension issues added to its woes, making it an expensive and less rewarding car to maintain, particularly when unexpected repairs arise.

Unlike its predecessors, this version lacks strong aftermarket support, limiting affordable upgrade options. In the face of today’s better-engineered and more exciting alternatives, the 4th-gen Eclipse falls short of expectations for both enthusiasts and casual buyers.

Toyota MR2 (3rd Gen)

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This mid-engine sports car offers sharp handling and a unique driving experience, but its downsides are hard to ignore. Engine problems, particularly those related to pre-cat material degradation, can cause catastrophic damage, turning ownership into a costly endeavour for many.

Beyond mechanical challenges, the MR2 Spyder’s minimal storage space and impractical layout make it unsuitable for daily use. While fun as a weekend car, its limitations prevent it from being a practical choice for most drivers, reducing its value as a daily investment.

Nissan Juke Nismo RS

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Quirky styling and a turbocharged engine define the Nissan Juke Nismo RS, but reliability concerns undermine its appeal. Common issues include turbocharger failures and persistent electrical problems, which can be both frustrating and expensive to repair, leaving many owners dissatisfied.

The cramped interior and limited cargo space only add to the drawbacks, especially when compared to more dependable and spacious options available in the market. While the Juke has unique charm, it’s often not enough to outweigh its flaws, making it a less compelling investment.

Acura NSX (First Gen)

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A true icon of automotive engineering, the first-generation Acura NSX set the standard for supercars in its era. Maintaining one today, however, requires deep pockets. Suspension components and transmission repairs are known to be particularly expensive, and sourcing parts can be challenging, adding to ownership costs.

Enthusiasts committed to preserving the NSX in its original condition must be prepared for the financial burden. While it remains a dream car for many, the cost of upkeep is a significant hurdle for potential owners, making it less practical for all but the most devoted.

Mitsubishi Lancer Evolution X

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Turbocharged power and all-wheel-drive performance make the Lancer Evolution X a standout, but it’s not without its flaws. Common issues with the clutch and transmission can result in high repair bills, frustrating owners who expect long-term durability from their investment.

The Evo X’s stiff suspension and minimalist interior may also disappoint buyers looking for comfort alongside performance. While thrilling to drive, these drawbacks make it a more niche choice compared to more balanced sports sedans, limiting its broader appeal.

Suzuki Cappuccino

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Small, lightweight, and undeniably fun, the Suzuki Cappuccino offers a unique driving experience that’s hard to match. However, its quirks can quickly become drawbacks. Parts for this kei car are often scarce outside Japan, making repairs time-consuming and expensive for owners.

The cramped interior and limited practicality further limit its appeal, particularly for those who need more than a novelty vehicle. While it’s a joy for weekend cruises, the Cappuccino struggles as an everyday car or long-term investment, making it a challenging choice for practical buyers.

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