Vauxhall Insignia 1.5 Diesel 2021: Comprehensive Drive Test

The Vauxhall Insignia continues to hold its ground in the large family hatchback segment with the introduction of a fresh 1.5-litre three-cylinder diesel engine in 2021. This model aims to deliver practicality, modern features and competitive pricing, appealing to fleet buyers and private motorists seeking value. While it boasts an eye-catching exterior and comprehensive standard equipment, the new powertrain reveals some shortcomings in responsiveness and smoothness. Our evaluation covers design updates, performance metrics, interior comforts, running costs and how it stacks up against key rivals.

Exterior Styling and Dimensions

The Insignia’s facelifted design for 2021 emphasizes a bolder presence. Its sleek fastback profile, combined with a wide stance, gives it a premium feel on the road. The SRi VX-Line Nav variant, priced at around £28,720, features 20-inch alloy wheels that enhance its sporty silhouette but impact ride quality over rough surfaces.

• Bold front grille: The updated grille with chrome accents and slim LED headlights creates an aggressive look.
• Sweeping roofline: Contributes to improved aerodynamics and a coupe-like hatchback style.
• Rear lighting: Full-width LED tail lights add a modern touch.

Measuring over 4.8 meters in length, the Insignia offers generous space for passengers and luggage, making it suitable for families or business use. Its dimensions provide stability at high speeds, though the large wheels transmit more road imperfections into the cabin.

Engine Performance and Transmission

Central to this review is the all-new 1.5-litre three-cylinder turbodiesel, producing 121bhp and 300Nm of torque. Paired with a six-speed manual gearbox, it promises official economy figures of up to 61.4mpg and CO2 emissions of 121g/km. However, real-world testing reveals a different story, with observed fuel consumption around 41mpg during mixed driving.

The engine struggles with low-end pull, feeling lethargic below 2,500rpm and peaking early around 3,500rpm. Acceleration from 0-62mph takes 10.7 seconds, which feels sluggish for overtaking on motorways. The gearbox has a long, deliberate shift action that requires frequent use to stay in the narrow power band.

Refinement is another area needing improvement; the three-cylinder setup produces noticeable vibration and noise under load, though it quiets down at steady cruise speeds. For those prioritizing diesel efficiency, the more potent 2.0-litre unit with 174bhp offers better drivability, albeit at a higher cost.

Interior Space and Technology Features

Step inside, and the Insignia impresses with its airy cabin and high equipment levels. The SRi VX-Line Nav trim includes an eight-inch touchscreen supporting Apple CarPlay and Android Auto, heated seats and steering wheel, dual-zone climate control, wireless charging and adaptive cruise control as standard.

Front seats provide excellent support for long journeys, with ample adjustment. Rear legroom and headroom accommodate adults comfortably, and the 560-litre boot expands to 1,665 litres with seats folded. Materials feel sturdy, though some plastics appear dated compared to rivals.

• Infotainment: Intuitive interface with sharp graphics and smartphone mirroring.
• Comfort aids: Heated elements and ergonomic seating enhance winter drives.
• Visibility: Large glass areas and optional head-up display aid safety.

Advanced driver assists like lane keep assist and LED matrix lights are available higher up, positioning the Insignia as tech-competitive in its class.

Handling, Ride and Safety

On twisty roads, the Insignia exhibits composed handling thanks to its well-tuned chassis. Steering is precise, and body roll is minimal, fostering confidence. However, the 20-inch wheels compromise comfort, thumping over potholes and urban bumps. Motorway stability shines, with low wind noise and a settled ride at 70mph.

Safety credentials are solid, falling into the 27% Benefit-in-Kind tax band for company drivers—£1,538 annually for basic-rate taxpayers and £3,077 for higher-rate. Euro NCAP ratings (from prior tests) underline its family-friendly credentials, with strong crash protection and active safety tech.

Fuel Efficiency and Ownership Costs

While claimed figures tempt efficiency-focused buyers, real-world returns hover in the low 40s mpg during spirited drives. User reports suggest over 50mpg is achievable with gentle use and longer trips, aligning with diesel design strengths.

Purchase pricing starts competitively, with PCP deals around £355 monthly. Maintenance is straightforward, and Vauxhall’s warranty covers three years/60,000 miles. No plug-in hybrid option limits ultra-low emissions appeal against VW Passat or Skoda Superb.

Comparison with Rivals

The Insignia undercuts premium alternatives while matching space, but rivals offer smoother engines or hybrid efficiency. Its value proposition shines for budget-conscious fleets.

Pros and Cons Summary

• Pros: Attractive design, generous standard features, spacious interior, stable highway manners, low BiK tax.
• Cons: Underpowered engine, firm ride on big wheels, average refinement, no PHEV variant.

Overall, the Insignia remains a capable all-rounder in a dwindling market, best suited for motorway cruisers valuing equipment over outright pace.

Frequently Asked Questions (FAQs)

Is the 1.5 diesel Insignia reliable?

Early feedback indicates good longevity with proper maintenance, especially for high-mileage use. Modern diesels thrive on long runs.

What’s the boot space like?

560 litres standard, expanding significantly—ideal for family holidays or work loads.

Does it have Apple CarPlay?

Yes, standard on most trims via the eight-inch touchscreen.

How does it compare to SUVs?

More practical interior space at lower running costs, though less fashionable than crossovers.

Is an automatic available?

Yes, an eight-speed auto pairs well, improving usability despite slightly slower acceleration.