Petrolheadonism Underground 2025: London’s Biggest Indoor Car Show at Wembley

Petrolheadonism Underground 2025 took over the underground car parks of Wembley Stadium on March 29–30, delivering one of the UK’s most diverse and atmospheric car events. With over 1,000 vehicles on display, this London car show became a magnet for enthusiasts of every kind—whether you love hypercars, retro classics, American muscle, or low-slung JDM legends.

Set entirely indoors, the venue provided a raw, industrial energy: tight ceilings, vivid lighting, and echoing acoustics turned the multi-storey car park into an arena of metal and character. This wasn’t just a car show, it was a statement.

Event Highlights at a Glance

• Location: Underground car parks at Wembley Stadium, London
• Dates: March 29–30, 2025
• Visitors: Estimated 10,000 per day
• Vehicles: 1000+ supercars, classics, JDM, muscle cars, and more
• Guests: Shmee150, Auto Alex, Mike Brewer, Smallest Cog, and more

Wembley’s Ultimate Car Culture Mashup

The diversity on show at Petrolheadonism Underground 2025 was staggering. JDM fans crowded around iconic Nissan Skylines, Toyota Supras, and bagged MX-5s. American muscle rumbled through the venue Mustangs, Corvettes, and retro hot rods sat proudly next to slammed Euros and drift builds.

Unlike outdoor events, the enclosed environment at Wembley made every engine rev and exhaust crackle feel intimate. The layout allowed for slow walks and serious photography, letting fans and creators document builds up close.

Stage Presence and Influencer Energy

One of the show's greatest strengths was its media and creator presence. Live Q&As, build showcases, and meet & greets with names like Auto Alex and Richard Hammond’s “Smallest Cog” gave the event a festival feel. Whether you were there to chat, film, or flex your build, there was something for everyone.

For those wanting more than static displays, dyno runs and loud engine start-ups offered visceral moments that added to the underground vibe.

Visual Highlights from Petrolheadonism Underground

What Made Petrolheadonism Underground 2025 Stand Out?

• Authentic venue with unique industrial atmosphere
• Wide diversity of builds: from £1M hypercars to home-brewed drift missiles
• Big personalities and influencers actively engaging with fans
• Central London location—accessible and high-energy

Looking Ahead to 2026

This year’s success has firmly planted Petrolheadonism Underground as a staple of UK car culture. The energy, diversity, and organisation impressed first-timers and returning fans alike. If 2025 was this good, we can only imagine what 2026 will bring. Stay tuned via petrolheadonism.club or follow on Instagram for updates.

Frequently Asked Questions

Where is Petrolheadonism Underground held?

The event takes place at Wembley Stadium’s underground coach parking areas in London.

What types of cars are at the show?

Everything from JDM legends and classic American muscle to hypercars, drift builds, and modified customs.

Can I bring my car?

Yes—applications for show car spaces usually open months in advance on the official website.