The Saturn Aura XR 3.5i V6 was a mid-size sedan produced by Saturn, a General Motors (GM) division, from 2006 to 2009. Positioned as a competitor to established models like the Honda Accord and Toyota Camry, the Aura represented Saturn’s attempt to move further upmarket and offer a more refined driving experience. The XR trim level signified the higher-performance variant, equipped with a 3.5-liter V6 engine. The Aura was notable for being one of the last vehicles produced at Saturn’s Spring Hill, Tennessee manufacturing facility before the brand was discontinued following GM’s restructuring in 2010.
Saturn Aura XR: A Detailed Overview
The Aura was built on GM’s Epsilon platform, shared with other vehicles like the Chevrolet Malibu and Opel Vectra. This platform allowed for a relatively spacious interior and a comfortable ride. The XR model, specifically, aimed to appeal to drivers seeking a blend of practicality and performance. While Saturn as a brand was known for its unique sales and service experience, the Aura itself focused on delivering a competitive package in the crowded mid-size sedan segment.
Engine & Performance
The heart of the Aura XR was its 3.5-liter, 60-degree V6 engine. This naturally aspirated powerplant produced 227 horsepower at 5900 rpm and 298 Nm (219.79 lb.-ft.) of torque at 4000 rpm. The engine featured a double overhead camshaft (DOHC) valvetrain with two valves per cylinder and multi-port fuel injection. This configuration provided a good balance of power and responsiveness for everyday driving. The engine’s specific output was 64.7 horsepower per liter, a respectable figure for its time. Power was delivered to the front wheels via a four-speed automatic transmission. The Aura XR’s weight-to-power ratio was 7.1 kg/Hp (141.4 Hp/tonne), and its weight-to-torque ratio was 5.4 kg/Nm (185.7 Nm/tonne), contributing to its reasonably brisk acceleration. Fuel economy was rated at 11.8 l/100 km (19.9 US mpg) in urban driving and 7.9 l/100 km (29.8 US mpg) in extra-urban conditions.
Design & Features
The Saturn Aura XR was a four-door sedan with a relatively conservative, yet modern, design for its era. It featured a sloping roofline and a prominent grille, characteristic of Saturn’s styling cues. The interior was designed with comfort and practicality in mind, offering seating for five passengers. Standard features on the XR trim included air conditioning, power windows and locks, and an audio system. Safety features were becoming increasingly important in the mid-2000s, and the Aura XR included anti-lock brakes (ABS) as standard equipment. The trunk offered 445 liters (15.72 cubic feet) of cargo space, providing ample room for luggage and other items. The vehicle’s dimensions were 4851 mm (190.98 in) in length, 1786 mm (70.31 in) in width, and 1475 mm (58.07 in) in height, with a wheelbase of 2852 mm (112.28 in). The front and rear track widths were 1523 mm (59.96 in) and 1533 mm (60.35 in) respectively.
Technological Aspects
While not groundbreaking, the Aura XR incorporated several technologies common for its time. The engine management system optimized fuel delivery and ignition timing for improved efficiency and performance. The four-speed automatic transmission was designed for smooth shifting and responsive acceleration. The ABS system helped to maintain control during emergency braking situations. The suspension system, utilizing spring struts at both the front and rear, aimed to provide a comfortable ride while maintaining reasonable handling characteristics. The steering system employed a rack and pinion design for precise steering feel.
Technical Specifications
| Brand | Saturn |
| Model | Aura |
| Generation | Aura XR |
| Type (Engine) | 3.5 i V6 (227 Hp) |
| Start of production | 2006 |
| End of production | October, 2009 |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Sedan |
| Seats | 5 |
| Doors | 4 |
| Fuel consumption (urban) | 11.8 l/100 km (19.9 US mpg) |
| Fuel consumption (extra urban) | 7.9 l/100 km (29.8 US mpg) |
| Fuel Type | Petrol (Gasoline) |
| Weight-to-power ratio | 7.1 kg/Hp |
| Weight-to-torque ratio | 5.4 kg/Nm |
| Power | 227 Hp @ 5900 rpm |
| Power per litre | 64.7 Hp/l |
| Torque | 298 Nm @ 4000 rpm (219.79 lb.-ft. @ 4000 rpm) |
| Engine layout | Front, Transverse |
| Engine displacement | 3510 cm3 (214.19 cu. in.) |
| Number of cylinders | 6 |
| Engine configuration | V-engine |
| Cylinder Bore | 99 mm (3.9 in.) |
| Piston Stroke | 76 mm (2.99 in.) |
| Compression ratio | 9.8:1 |
| Number of valves per cylinder | 2 |
| Fuel injection system | Multi-port manifold injection |
| Engine aspiration | Naturally aspirated engine |
| Valvetrain | DOHC |
| Engine oil capacity | 5.2 l (5.49 US qt | 4.58 UK qt) |
| Coolant capacity | 9.2 l (9.72 US qt | 8.09 UK qt) |
| Kerb Weight | 1605 kg (3538.42 lbs.) |
| Trunk (boot) space | 445 l (15.72 cu. ft.) |
| Fuel tank capacity | 62 l (16.38 US gal | 13.64 UK gal) |
| Length | 4851 mm (190.98 in.) |
| Width | 1786 mm (70.31 in.) |
| Height | 1475 mm (58.07 in.) |
| Wheelbase | 2852 mm (112.28 in.) |
| Front track | 1523 mm (59.96 in.) |
| Rear track | 1533 mm (60.35 in.) |
| Drivetrain Architecture | Front wheel drive |
| Number of gears | 4 |
| Gearbox type | 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 | 225/50 R17 |
The Saturn Aura XR 3.5i V6, while ultimately unsuccessful in saving the Saturn brand, offered a compelling combination of performance, comfort, and features for its time. It remains a representative example of American mid-size sedans from the late 2000s, showcasing the technology and design trends of that era.
