2005-2008 Mazda MX-5 III (NC) 2.0 i 16V (167 Hp)

The Mazda MX-5 NC 2.0i 16V, produced from 2005 to 2008, represents the third generation of Mazda’s iconic roadster. Positioned as a mid-range offering within the NC lineup, this variant combined a 2.0-liter inline-four engine with a six-speed automatic transmission. It aimed to provide a more accessible entry point to MX-5 ownership for drivers prioritizing convenience over the more engaging experience of the manual gearbox. The NC generation, internally designated as the 1HX0 platform, sought to refine the formula established by its predecessors – lightweight, rear-wheel drive, and a focus on driving pleasure – while incorporating modern safety and comfort features. This particular 2.0i trim served as a sweet spot for many buyers, offering a noticeable performance increase over the base 1.8-liter models without the higher price tag of the later, more powerful variants.

Technical Specifications

Brand Mazda
Model MX-5
Generation MX-5 III (NC)
Type (Engine) 2.0 i 16V (167 Hp)
Start of production 2005
End of production 2008
Powertrain Architecture Internal Combustion engine
Body type Roadster
Seats 2
Doors 2
Fuel consumption (urban) 10.2 l/100 km (23.1 US mpg)
Fuel consumption (extra urban) 7.9 l/100 km (29.8 US mpg)
Fuel Type Petrol (Gasoline)
Maximum speed 210 km/h (130.49 mph)
Weight-to-power ratio 6.9 kg/Hp
Weight-to-torque ratio 6 kg/Nm
Power 167 Hp @ 6700 rpm
Power per litre 83.5 Hp/l
Torque 190 Nm @ 5000 rpm (140.14 lb.-ft. @ 5000 rpm)
Engine layout Front, Longitudinal
Engine displacement 1999 cm3 (121.99 cu. in.)
Number of cylinders 4
Engine configuration Inline
Cylinder Bore 87.5 mm (3.44 in.)
Piston Stroke 83.1 mm (3.27 in.)
Compression ratio 10.8:1
Number of valves per cylinder 4
Fuel injection system Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Valvetrain DOHC
Engine oil capacity 4.3 l (4.54 US qt | 3.78 UK qt)
Coolant 7.5 l (7.93 US qt | 6.6 UK qt)
Kerb Weight 1146 kg (2526.5 lbs.)
Max. weight 1396 kg (3077.65 lbs.)
Max load 250 kg (551.16 lbs.)
Trunk (boot) space – minimum 150 l (5.3 cu. ft.)
Fuel tank capacity 50 l (13.21 US gal | 11 UK gal)
Length 3995 mm (157.28 in.)
Width 1720 mm (67.72 in.)
Height 1245 mm (49.02 in.)
Wheelbase 2330 mm (91.73 in.)
Front track 1490 mm (58.66 in.)
Rear (Back) track 1495 mm (58.86 in.)
Drivetrain Architecture Rear wheel drive
Number of gears and type of gearbox 6 gears, automatic transmission
Front suspension Spring Strut
Rear suspension Spring Strut
Front brakes Ventilated discs
Rear brakes Disc
Assisting systems ABS (Anti-lock braking system)
Steering type Steering rack and pinion
Tires size 205/45 ZR17 84 W
Wheel rims size 7J x 17 ET 55

Powertrain & Engine Architecture

The heart of the MX-5 NC 2.0i is the MZR (Mazda Zoom-Zoom) 1.999-liter inline-four cylinder engine. This engine, utilizing a cast iron block and aluminum cylinder head, featured dual overhead camshafts (DOHC) and four valves per cylinder. The multi-point fuel injection system delivered fuel directly into the intake ports, optimizing combustion efficiency. The engine produced 167 horsepower at 6,700 rpm and 140 lb-ft of torque at 5,000 rpm. Paired with this engine was a six-speed automatic transmission, a significant upgrade from the four-speed automatic offered in previous generations. This transmission featured a torque converter and offered manual shift control, allowing drivers some degree of engagement. While not as sporty as the available five-speed manual, the automatic provided smoother shifts and greater convenience for daily driving.

Driving Characteristics

The 2.0i automatic MX-5 offered a comfortable and accessible driving experience. The automatic transmission, while improving convenience, did slightly diminish the raw driving feel compared to the manual version. Gear ratios were tuned for a balance of acceleration and fuel economy. Acceleration from 0 to 60 mph was typically around 7.5-8 seconds, respectable for a lightweight roadster but slower than the manual counterpart. The automatic transmission tended to hold gears longer, prioritizing fuel efficiency over aggressive acceleration. The rear-wheel drive configuration provided balanced handling, and the relatively low curb weight of around 2,526 lbs contributed to nimble cornering. However, the automatic transmission could sometimes feel hesitant during quick downshifts, and the overall driving experience lacked the direct connection offered by the manual gearbox.

Equipment & Trim Levels

The 2.0i trim level typically included standard features such as power windows, power locks, air conditioning, and a basic audio system. Interior upholstery was usually cloth, with options for leather available. Dashboard configuration was relatively simple and driver-focused. Popular optional extras included a premium Bose audio system, a limited-slip differential (enhancing traction), and various cosmetic enhancements. The 2.0i often served as a base for buyers who then added packages like the “Sport” or “Touring” packages, which bundled together popular options.

Chassis & Braking

The MX-5 NC utilized a MacPherson strut suspension setup at both the front and rear. This configuration provided a good balance of ride comfort and handling precision. The front brakes were ventilated discs, while the rear brakes were solid discs – a step up from the drum brakes found on some earlier MX-5 models. Anti-lock Braking System (ABS) was standard. The chassis was designed to be lightweight and rigid, contributing to the car’s responsive handling. Stabilizer bars were fitted front and rear to reduce body roll during cornering.

Market Reception & Comparison

The MX-5 NC 2.0i automatic received generally positive reviews. Critics praised its comfortable ride, responsive handling, and refined engine. However, the automatic transmission was often criticized for lacking the engagement of the manual gearbox. Compared to the 1.8-liter models, the 2.0i offered a noticeable performance improvement. Compared to the higher-output 2.0-liter variants (often found in later model years or with specific packages), the 2.0i automatic offered a more affordable entry point with slightly less performance. Fuel economy was respectable, averaging around 23 mpg in the city and 30 mpg on the highway. Reliability was generally good, with the MZR engine proving to be durable.

Legacy

The MX-5 NC 2.0i automatic has proven to be a reliable and enjoyable used car. The MZR engine is known for its longevity, and the automatic transmission, while not the most exciting, has generally held up well over time. These cars are readily available on the used market at relatively affordable prices. They appeal to drivers seeking a fun, lightweight roadster with the convenience of an automatic transmission. While purists often favor the manual versions, the 2.0i automatic remains a popular choice for those prioritizing ease of use and everyday practicality. The NC generation, as a whole, is considered a significant evolution of the MX-5 formula, successfully blending modern features with the classic roadster experience.

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