Mazda MX-5 III (NC) (2005 – 2015)

Reliability score : 8.6/10

The Mazda MX-5 Generation III (NC) represents a significant evolution of the world's best-selling roadster. Moving away from the NA/NB architecture, the NC shares a modified, shortened version of the RX-8 platform, resulting in a stiffer chassis, improved safety, and a slightly larger footprint. It introduced the PRHT (Power Retractable Hard Top) in 2006, broadening its appeal to all-weather drivers. The NC lifecycle is divided into three phases: NC1 (2005–2008), NC2 (2009–2012, major facelift with suspension and engine upgrades), and NC3 (2013–2015, minor cosmetic and pedestrian safety updates). While purists initially criticized its slight weight gain, the NC is now highly regarded as the most comfortable, practical, and arguably the most robust generation for daily driving, provided spe

✅ Strengths

Exceptional chassis balance and driving dynamics (50:50 weight distribution)
PRHT (Power Retractable Hard Top) is fast (12 seconds), reliable, and doesn't compromise trunk space
Timing chain driven engines (no timing belt to replace)
More spacious and comfortable cabin compared to NA/NB and ND generations
Excellent aftermarket support and tuning potential (takes well to supercharging/turbocharging)

⚠️ Weaknesses

Coolant expansion tank is a known ticking time bomb (cheap to fix, but fatal if ignored)
Rust/Corrosion: Better than NA/NB, but still affects rear wheel arches, sills, and underbody components
Soft top drains easily clog, leading to water pooling behind the seats (can damage the Bluetooth/Bose amp)
6-speed manual gearbox can be notoriously stiff and notchy when cold (1st to 2nd gear shift)
Suspension alignment bolts frequently seize due to corrosion, making geometry adjustments difficult

🎯 Verdict

The Mazda MX-5 NC is an outstanding, reliable sports car that offers arguably the best value for money in the used roadster market today. It is significantly more modern and safer than the NA/NB, while being cheaper to buy than the ND. The 2.0L engine, particularly in the facelifted NC2/NC3 versions, is the definitive choice for enthusiasts. However, prospective buyers must be vigilant about two things: rust and the plastic coolant expansion tank. If you find a rust-free example, immediately replace the coolant tank (if not already done), seal the scuttle grommets, and keep the oil topped up. Do this, and the NC will provide hundreds of thousands of kilometers of trouble-free, joyful driving.