
Classic, Muscle & Show-Car Detailing
30+ years of street-rod and show-car craft dedicated to restored classics, vintage single-stage paintwork, and prized weekend cruisers.
Classic cars, Australian and American muscle, street rods, and fresh restoration builds demand a completely different level of care than late-model fleet vehicles. Whether your pride and joy wears delicate vintage acrylic lacquer, freshly colour-sanded two-pack, or custom metallic graphics, one careless pass with a heavy pad can permanently burn an edge.
At Groom Garage in Maraylya, Tony Portelli brings over three decades in the street-rod and show-car circuit to every collector vehicle. Respected local hot-rod builders trust our workshop for final assembly paint refinement before cars hit shows or collector garages across Sydney.
Operating strictly by appointment inside our enclosed studio, we take the time to measure panel thickness, dial in low-heat pad-and-polish combinations, dress brightwork and billet components cleanly, and optionally seal the finish with Always Dry ceramic protection.

Why Choose Groom Garage for Classic & Muscle Car Finishing
30+ Years Paint & Hot Rod Background
Decades working alongside restorers, painters, and builders means we read paint systems accurately before touching a buffer.
Ultrasonic Depth & Heat Control
Systematic clear-coat thickness readings around character lines, louvers, and fibreglass edges keep rare panels safe.
Two-Pack, Lacquer & Custom Finishes
Tailored wool, foam, and jeweling stages turn flat orange peel or rotary holograms into liquid-glass show depth.
Show-Ready Engine & Trim Presentation
Gentle cleaning and dressing for billet aluminium, stainless exhaust tips, chrome bumpers, and custom interior upholstery.
What's Included in Your Appointment
- Controlled waterless/low-moisture safe wash designed for classic seals and weatherstripping
- Inspection under high-CRI swirl-finder and daylight lamps
- Ultrasonic thickness checks across steel panels and careful thermography on fibreglass/composite
- Multi-stage paint correction & ultra-fine jeweling to eliminate wet-sanding pigtails or storage haze
- Polishing of chrome, stainless brightwork, and painted valve covers / billet components
- Optional Always Dry ceramic sealing over cured paintwork, wheels, and undercarriage accents

Our Step-by-Step Studio Process
Builder & Owner Consultation
We review paint history — freshly painted two-pack, original survivor finish, or older lacquer — before planning correction.
Dry-Bay Inspection & Gauge Mapping
Low-moisture cleaning around trim badges and rubbers prevents trapped moisture in vintage seams.
Test Spot & Multi-Stage Correction
A dedicated test panel confirms exact pad pressure and compound cut before refining the entire body.
Brightwork, Cabin & Engine Bay Craft
Non-greasy satin conditioning for leather/vinyl trim and crisp metal polishing where eyes go first.
Concours Ceramic Seal (Optional)
If paintwork is fully outgassed, we lock in that freshly polished depth with Always Dry ceramic protection.
Built for Restorations, Muscle Cars & Weekend Cruisers
Owners driving 1960s and 1970s muscle cars — from iconic HT Holden Monaro GTS 350s and classic Chevrolets to Falcon GTs, Toranas, street rods, and air-cooled European classics — across Windsor, Kurrajong, Dural, and Castle Hill often struggle to find a detailer who understands older construction.
Modern express wash bays use caustic degreasers and high-pressure lances that can lift decals, force water behind classic window channels, or haze uncoated billet trim. Inside our Maraylya bay, everything happens calmly by hand and controlled machine speed.
Preserving Fresh Restoration Paintwork
Freshly sprayed custom builds often leave the booth with light buffing trails or faint DA sanding marks visible only under direct afternoon sun. Performing proper two- and three-stage jeweling once the paint has finished curing reveals remarkable wet clarity without relying on oily glaze fillers.
Who This Service Is Built For
Collector owners, hot-rod builders, car club members, and restorers across The Hills District, Hawkesbury, and Greater Sydney.
Frequently Asked Questions
Complementary Studio Services
Book Classic & Muscle Car Finishing in Maraylya
Speak directly with Tony Portelli at our Maraylya studio — by appointment only across The Hills District & Hawkesbury.
