The Opel Manta A 1.6, producing 75 horsepower, was a variant of the iconic Manta A coupe produced in 1975. Positioned as an entry-level offering within the Manta A range, it provided a more affordable route into Opel’s sporty coupe, appealing to buyers prioritizing economy and style over outright performance. The Manta A, launched in 1970, was Opel’s answer to the Ford Capri and aimed to capture a segment of the market seeking a stylish, sporty, and relatively affordable personal coupe. This particular 1.6-liter version represented a balance between performance and fuel efficiency, making it a popular choice in Europe during the mid-1970s.
Technical Specifications
| Brand | Opel |
| Model | Manta |
| Generation | Manta A |
| Type (Engine) | 1.6 (75 Hp) |
| Start of production | 1975 |
| End of production | 1975 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Coupe |
| Seats | 4 |
| Doors | 2 |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 15 sec |
| Acceleration 0 – 62 mph | 15 sec |
| Acceleration 0 – 60 mph | 14.3 sec |
| Maximum speed | 160 km/h (99.42 mph) |
| Weight-to-power ratio | 12.6 kg/Hp, 79.4 Hp/tonne |
| Weight-to-torque ratio | 8.2 kg/Nm, 121.7 Nm/tonne |
| Power | 75 Hp @ 5000 rpm |
| Power per litre | 47.3 Hp/l |
| Torque | 115 Nm @ 3800 rpm (84.82 lb.-ft. @ 3800 rpm) |
| Engine layout | Front, Longitudinal |
| Engine Model/Code | 16S |
| Engine displacement | 1584 cm3 (96.66 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 85 mm (3.35 in.) |
| Piston Stroke | 69.8 mm (2.75 in.) |
| Compression ratio | 8.8:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Carburettor |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 3.8 l (4.02 US qt | 3.34 UK qt) |
| Coolant | 6.5 l (6.87 US qt | 5.72 UK qt) |
| Kerb Weight | 945 kg (2083.37 lbs.) |
| Max. weight | 1310 kg (2888.06 lbs.) |
| Max load | 365 kg (804.69 lbs.) |
| Trunk (boot) space – minimum | 326 l (11.51 cu. ft.) |
| Fuel tank capacity | 46 l (12.15 US gal | 10.12 UK gal) |
| Permitted trailer load with brakes (12%) | 1000 kg (2204.62 lbs.) |
| Permitted trailer load without brakes | 500 kg (1102.31 lbs.) |
| Length | 4292 mm (168.98 in.) |
| Width | 1626 mm (64.02 in.) |
| Height | 1360 mm (53.54 in.) |
| Wheelbase | 2430 mm (95.67 in.) |
| Front track | 1331 mm (52.4 in.) |
| Rear (Back) track | 1320 mm (51.97 in.) |
| Minimum turning circle | 10.5 m (34.45 ft.) |
| Drivetrain Architecture | Rear wheel drive |
| Number of gears and type of gearbox | 4 gears, manual transmission |
| Front brakes | Disc |
| Rear brakes | Drum |
Powertrain & Engine Architecture
The heart of the Manta A 1.6 was the 16S engine, a 1.6-liter (1584 cc) inline-four cylinder unit. This engine utilized a single overhead camshaft (SOHC) valvetrain with two valves per cylinder. Fuel delivery was managed by a carburetor, a common setup for the time, offering simplicity and relatively low cost. The engine produced 75 horsepower at 5000 rpm and 115 Nm (84.82 lb-ft) of torque at 3800 rpm. The engine was mounted longitudinally in the front of the vehicle, driving the rear wheels. The four-speed manual transmission was the standard offering for this variant, providing a direct connection between the engine and the drivetrain. The 16S engine, while not particularly powerful, was known for its durability and relatively easy maintenance.
Driving Characteristics
The 1.6-liter Manta A offered a driving experience focused on usability and affordability. Acceleration to 60 mph took around 14.3 seconds, and top speed was approximately 99.42 mph. Compared to the more powerful Manta variants, such as those equipped with the 1.9-liter engine or the later 2.0-liter versions, the 1.6 felt noticeably slower. However, the lighter weight of the 1.6 compared to some of its siblings helped to mitigate the power deficit to some extent. The four-speed manual transmission provided adequate control, but the gear ratios were spaced to prioritize fuel economy rather than outright performance. Handling was typical of rear-wheel-drive coupes of the era – predictable but requiring driver awareness, especially in wet conditions.
Equipment & Trim Levels
The 1.6-liter Manta A was generally equipped with basic, but functional, features. Standard equipment typically included cloth upholstery, basic instrumentation (speedometer, fuel gauge, temperature gauge), and manually operated windows and door locks. Optional extras included a vinyl roof, upgraded audio systems, and tinted glass. The interior design was relatively simple and functional, reflecting the car’s position as an entry-level model. The dashboard layout was straightforward, with all essential controls within easy reach of the driver.
Chassis & Braking
The Manta A utilized a body-on-frame construction, which was common for the period. The suspension consisted of independent front suspension with coil springs and a rigid rear axle with leaf springs. The braking system featured disc brakes on the front wheels and drum brakes on the rear. While adequate for the car’s performance capabilities, the rear drum brakes were a point of criticism compared to the all-disc setups found on some higher-spec models. The steering was a recirculating ball system, providing a relatively direct feel but lacking the precision of more modern steering technologies.
Market Reception & Comparison
The Opel Manta A 1.6 was generally well-received as an affordable and stylish coupe. Critics praised its attractive design and relatively low price point. However, the 1.6-liter engine was often criticized for its lack of power, particularly when compared to the more potent engine options available in the Manta range. Compared to the 1.9-liter version, the 1.6 offered better fuel economy but significantly less performance. The 1.6 was aimed at buyers who prioritized economy and style over outright speed, while the 1.9 and 2.0-liter models catered to those seeking a more engaging driving experience.
Legacy
The Opel Manta A 1.6, while not the most powerful or sought-after variant, remains a popular classic car today. The 16S engine is known for its reliability and relatively simple maintenance requirements. Parts availability is generally good, making it a viable option for enthusiasts looking for a classic coupe project. The Manta A, in general, has gained a cult following over the years, and well-maintained examples command respectable prices in the used car market. The 1.6-liter version, in particular, offers an affordable entry point into Manta ownership, allowing enthusiasts to enjoy the car’s iconic styling and classic driving experience without breaking the bank.
