DRIVING through a tunnel is an experience many motorists savour for the noise and exhaust specialists Milltek have just come up with a list of where the acoustics are unforgettable.

"Tunnels are more than just infrastructure - they'refor sound. Every downshift, every overrun crackle, every rise to the redline is transformed. For anyone running a Milltek exhaust, it's where the engineering really shines," says Kev Hall, technical operations manager at Milltek.

Here are some of the greatest in the UK and Europe to savour.

You don't have to leave Britain to get a taste of tunnel magic. The Jubilee Way Tunnel in Dover might be short, but its enclosed space and gentle curve make it the perfect place to open the taps briefly and hear your exhaust roar. For many car enthusiasts heading to Europe via Dover's ferries, it's a traditional warm-up - a little taster before the continental roads to come.

The Queensway and Kingsway tunnels beneath the River Mersey aren't just feats of engineering; they're also an acoustic wonderland. The long, uninterrupted stretches of tarmac give plenty of opportunity to test your throttle response, and the way the sound lingers feels like a private concert for your engine note. Early mornings or late nights are the best time for a relatively clear run.

At 1.2 miles long, Hindhead is the UK's longest road tunnel. It's an essential stop for exhaust lovers. With its modern surfaces and excellent lighting, it feels slick and futuristic - but more importantly, it's long enough for you to drop a gear and savour the full build-up of your exhaust's tone without worrying about running out of space too quickly.

At over 10 miles, the Gotthard Road Tunnel is one of the longest in the world - and it's like an opera house for engines. The sheer length means you can experiment with every gear, every throttle input, and enjoy the resonance at different rev ranges.

Connecting Chamonix in France with Courmayeur in Italy, this famous tunnel runs for seven miles under Western Europe's highest peak. The scenery on either side is breathtaking, but inside, it's the sound that dominates. The combination of alpine air, long straights, and smooth walls make it one of the most atmospheric drives anywhere.

Perhaps the most iconic tunnel in motorsport, Monaco's Grand Prix tunnel is legendary for its acoustics. Watch any onboard footage from Formula 1 and you'll hear the pitch of engines climbing, echoing like nowhere else. Driving it yourself (outside race weekends, of course) is a spine-tingling experience. The echo is sharp, immediate, and almost theatrical - perfect for a Milltek system.

Stretching almost nine miles under the Austrian Alps, the Arlberg is a dramatic drive in its own right, but the sound it produces makes it unforgettable. It's wide, well-maintained, and gives you enough space to enjoy both the sound and the sense of occasion as you cross one of Europe's most historic routes.

This short but sweet tunnel is tucked into the spectacular A40 motorway - sometimes called the Autoroute Blanche - that winds from Geneva into the French Alps. With sweeping climbs and breathtaking views outside, the acoustics inside provide a welcome chance to hear your car at its best.

Certain cars were born for tunnels - and Milltek makes them even better. Here are just a few combinations guaranteed to make your next tunnel run unforgettable: