Technical Specifications
| Brand | Opel |
| Model | Astra |
| Generation | Astra G |
| Type (Engine) | 1.6 (75 Hp) |
| Start of production | March, 1998 |
| End of production | June, 2000 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Hatchback |
| Seats | 5 |
| Doors | 3-5 |
| Fuel consumption (urban) | 9.7 l/100 km (24.2 US mpg, 29.1 UK mpg, 10.3 km/l) |
| Fuel consumption (extra urban) | 5.8 l/100 km (40.6 US mpg, 48.7 UK mpg, 17.2 km/l) |
| Fuel consumption (combined) | 7.2 l/100 km (32.7 US mpg, 39.2 UK mpg, 13.9 km/l) |
| CO2 emissions | 173 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 100 km/h | 14.5 sec |
| Acceleration 0 – 62 mph | 14.5 sec |
| Acceleration 0 – 60 mph | 13.8 sec |
| Maximum speed | 170 km/h (105.63 mph) |
| Emission standard | Euro 2 |
| Weight-to-power ratio | 14.5 kg/Hp, 69.1 Hp/tonne |
| Weight-to-torque ratio | 8.5 kg/Nm, 118 Nm/tonne |
| Power | 75 Hp @ 5200 rpm |
| Power per litre | 46.9 Hp/l |
| Torque | 128 Nm @ 2800 rpm (94.41 lb.-ft. @ 2800 rpm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | X16SZR |
| Engine displacement | 1598 cm3 (97.52 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 79 mm (3.11 in.) |
| Piston Stroke | 81.5 mm (3.21 in.) |
| Compression ratio | 9.6:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | SOHC |
| Engine oil capacity | 3.25 l (3.43 US qt, 2.86 UK qt) |
| Coolant | 5.8 l (6.13 US qt, 5.1 UK qt) |
| Kerb Weight | 1085 kg (2392.02 lbs.) |
| Max. weight | 1605 kg (3538.42 lbs.) |
| Max load | 520 kg (1146.4 lbs.) |
| Trunk (boot) space – minimum | 370 l (13.07 cu. ft.) |
| Trunk (boot) space – maximum | 1180 l (41.67 cu. ft.) |
| Fuel tank capacity | 52 l (13.74 US gal, 11.44 UK gal) |
| Max. roof load | 100 kg (220.46 lbs.) |
| Permitted trailer load with brakes (12%) | 1000 kg (2204.62 lbs.) |
| Permitted trailer load without brakes | 570 kg (1256.63 lbs.) |
| Permitted towbar download | 75 kg (165.35 lbs.) |
| Length | 4110 mm (161.81 in.) |
| Width | 1709 mm (67.28 in.) |
| Width including mirrors | 1989 mm (78.31 in.) |
| Height | 1425 mm (56.1 in.) |
| Wheelbase | 2606 mm (102.6 in.) |
| Front track | 1464 mm (57.64 in.) |
| Rear (Back) track | 1452 mm (57.17 in.) |
| Front overhang | 791 mm (31.14 in.) |
| Rear overhang | 713 mm (28.07 in.) |
| Ride height (ground clearance) | 130 mm (5.12 in.) |
| Drag coefficient (Cd) | 0.28 |
| Minimum turning circle | 10.8 m (35.43 ft.) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 5 gears, manual transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Semi-independent, coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Drum |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Hydraulic Steering |
| Tires size | 185/65 R15 H |
| Wheel rims size | 6J x 15 ET49 |
The Opel Astra G 1.6, producing 75 horsepower, was a cornerstone of the Astra G range manufactured between March 1998 and June 2000. Positioned as the entry-level model, it was the most accessible variant within the broader Astra G generation (1998-2004), which was built on the GM240/H platform. This model aimed to deliver affordable and practical transportation, appealing to budget-conscious buyers and those prioritizing fuel efficiency over outright performance. It was primarily sold in European markets, where the Astra consistently ranked as a popular choice in the compact family car segment.
Powertrain & Engine Architecture
The Astra G 1.6 utilized the Opel/Vauxhall X16SZR engine, a 1.6-liter inline-four cylinder gasoline engine. This engine was a relatively straightforward design, featuring a single overhead camshaft (SOHC) and two valves per cylinder. Fuel delivery was managed by a multi-port fuel injection system, providing adequate, though not exceptional, combustion control. The X16SZR generated 75 horsepower at 5200 rpm and 128 Nm (94.41 lb-ft) of torque at 2800 rpm. This engine was well-regarded for its reliability and relatively low maintenance costs. A five-speed manual gearbox was the standard transmission for this variant, although a four-speed automatic transmission was also available as an option. The automatic transmission, while offering convenience, demonstrably impacted acceleration and fuel economy.
Driving Characteristics
The 1.6-liter engine, when paired with the manual transmission, provided sufficient performance for everyday driving needs. Acceleration was modest, requiring approximately 14.5 seconds to reach 62 mph (100 km/h). The automatic transmission version was even slower, with a 0-60 mph time around 13.8 seconds. The engine felt somewhat strained at higher speeds, and overtaking maneuvers required careful consideration. The gear ratios in the manual transmission were reasonably well-spaced, allowing for acceptable flexibility in various driving scenarios. The automatic transmission, while smooth in operation, lacked the responsiveness of the manual and occasionally struggled to select the optimal gear, particularly when ascending inclines. The overall driving experience prioritized practicality and economy over sporty performance.
Equipment & Trim Levels
The 1.6-liter Astra G typically came equipped with a basic set of features. Standard inclusions were power steering, central locking, and an adjustable steering column. Interior upholstery was generally cloth, and the dashboard featured a simple, functional layout. Optional extras included air conditioning, electric windows, and an upgraded audio system. Trim levels varied slightly depending on the specific market, but generally, the 1.6-liter model represented the entry point to the Astra G range. It was frequently marketed towards first-time car buyers or those seeking a dependable and affordable family vehicle.
Chassis & Braking
The Astra G 1.6 featured a McPherson strut front suspension and a semi-independent coil spring rear suspension. This configuration delivered a comfortable ride, although it wasn’t particularly focused on sporty handling. The front brakes were ventilated discs, while the rear brakes were drums. ABS (Anti-lock Braking System) was standard equipment, enhancing safety. The suspension was tuned for comfort and stability, prioritizing ride quality over precise handling. The relatively light weight of the vehicle – around 1085 kg (2392 lbs) – helped to offset the effects of the engine’s modest power output.
Market Reception & Comparison
The Astra G 1.6 received a mixed reception from automotive critics. Reviewers generally praised its affordability, reliability, and fuel efficiency. However, they also pointed out its lack of performance and somewhat basic interior appointments. Compared to other engines available in the Astra G lineup, such as the 1.8-liter or the more powerful 2.0-liter variants, the 1.6-liter model offered significantly less power and acceleration. The 1.6-liter was also less refined than the diesel options, like the 1.7 DTI or 2.0 DTI. Nevertheless, it was generally less expensive to maintain than the higher-output engines, and its fuel economy was competitive within its class.
Legacy
The Opel Astra G 1.6 remains a relatively common sight on European roads today. The X16SZR engine is known for its durability and relatively low maintenance requirements. While not a particularly exciting vehicle, it proved to be a reliable and practical choice for many drivers. In the used car market, the 1.6-liter Astra G represents an affordable entry point into Astra ownership. However, prospective buyers should be aware of the age-related issues common to older vehicles, such as corrosion and wear and tear on suspension components. Despite its age, the Astra G 1.6 continues to offer a cost-effective and dependable transportation solution.
