Classic Car Paint Codes & Trim Restoration: Complete Guide (2026)

Why Original Paint Color Matters

The original paint color is one of the most important authenticity factors for a classic car. A car in its factory-applied color is worth 15-30% more than the same car in a non-original color — even if the non-original paint job is higher quality. Collectors and judges at concours events deduct heavily for incorrect colors. The paint code on your data plate is the definitive proof of what color your car left the factory in.

GM Paint Codes (1960-1980s)

General Motors used a standardized paint code system across all divisions (Chevrolet, Pontiac, Oldsmobile, Buick, Cadillac, GMC). The paint code is found on the cowl tag (also called the body data plate or Fisher Body tag), which is riveted to the firewall in the engine compartment. The code typically consists of 2-3 characters and may include a letter suffix for two-tone combinations.

For two-tone cars, the cowl tag will show two paint codes separated by a dash or listed in separate fields. The upper body color is listed first, followed by the lower body color. Convertible tops are not coded on the cowl tag — they're coded on the trim tag or build sheet.

Ford Paint Codes (1960-1979)

Ford used a more complex alphanumeric paint code system. The code is found on the data plate (warranty plate) riveted to the driver's door jamb. Ford paint codes consist of a letter prefix (M = enamel, A = acrylic enamel, D = lacquer) followed by a numeric code and sometimes a color name suffix.

Mopar Paint Codes (1960-1980s)

Chrysler (Mopar) used a 2-3 character paint code system found on the fender tag (also called the broadcast sheet or certification plate). The fender tag is located on the inner fender in the engine compartment. Mopar codes are shorter than GM or Ford codes and often use a letter-number combination. The fender tag also contains trim, engine, and option codes.

How to Match Original Paint

1. Decode the paint code
   • Find the cowl tag (GM), data plate (Ford), or fender tag (Mopar)
   • Use the code mapping tables above to identify the original color name
   • For two-tone cars, note both codes — upper and lower
2. Cross-reference with the build sheet
   • The build sheet (broadcast sheet) lists all factory options including paint
   • GM build sheets are often found under the rear seat or behind the dashboard
   • Ford build sheets are sometimes found under the carpet or inside door panels
3. Order the correct paint formula
   • PPG, DuPont, and Axalta maintain databases of original paint formulas
   • Provide the paint code to your supplier — they can mix the exact original color
   • Modern basecoat/clearcoat systems can match original lacquer and enamel colors
4. Verify with a hidden area
   • Before painting, check a hidden area (under the trunk mat, behind a door panel) for original paint
   • Compare the mixed paint to the original — adjust if necessary
   • UV fading may have changed the original color slightly — match to a protected area

Interior Trim Restoration: Cost Breakdown

Interior trim restoration is the second most expensive restoration category after bodywork and paint. A full interior restoration can cost $3,000-$15,000 depending on the car, the quality level, and whether you use reproduction or NOS (new old stock) materials. Here's a detailed breakdown of each component.

Costs based on 2024-2026 shop survey data from 25 restoration shops across the US. DIY costs include materials only (upholstery kits from PUI, TMI, Legendary Auto Interiors). Professional costs include labor at $85-$125/hr. NOS materials add 50-200% to material costs.

Upholstery Restoration: Seat Covers & Foam

Seat upholstery is the most visible interior component and the most expensive to restore. The three major suppliers — PUI (Perfect Fit), TMI Products, and Legendary Auto Interiors — produce reproduction seat covers for most American classics from the 1960s-1970s. Quality is generally excellent, with correct grain patterns, stitching, and materials.

• Material options:
  • Vinyl: $400-$800 per pair (front seats) — correct for most 1960s-1970s cars
  • Leather: $800-$1,500 per pair — upgrade for luxury cars (Corvette, Thunderbird)
  • Cloth/Vinyl combination: $500-$900 per pair — correct for some trim levels
  • Sienna grain vinyl: Correct for GM cars with deluxe interior (1969-1972)
• Foam replacement:
  • Always replace seat foam when reupholstering — old foam is compressed and crumbly
  • Foam kits: $80-$200 per seat
  • Buns (raw foam shapes): $40-$100 per seat — requires trimming to fit
  • Spring seat frames (pre-1965): May need rewiring — $100-$300 per seat
• Hog ring installation:
  • Seat covers attach to frames with hog rings (C-rings)
  • Use hog ring pliers ($15-$30) — don't try to do it by hand
  • Start at the center and work outward to avoid wrinkles
  • Stretch the cover tight — any slack will show as wrinkles after installation

Headliner Replacement

Headliner replacement is one of the trickiest interior jobs. Pre-1970s cars use a bow-style headliner (fabric stretched across metal bows), while 1970s+ cars use a molded headliner board. The bow-style requires patience and careful fitting — it's often best left to professionals.

• Bow-style headliner (1960s):
  • Materials: $120-$250 (pre-sewn headliner with listing sleeves)
  • Professional installation: $400-$900
  • Key challenge: listing wires must slide into the bows in the correct order
  • Tip: Install on a warm day — heat makes the fabric more pliable
• Molded headliner (1970s+):
  • Materials: $150-$300 (molded board with pre-attached fabric)
  • Professional installation: $350-$700
  • Easier than bow-style — the board clips into the roof
  • Tip: Remove through the rear door — the board is large and fragile

Dash Pad Restoration

Dash pads crack from UV exposure and temperature cycling. A cracked dash pad is one of the most obvious flaws in an otherwise nice interior. Options include recovering the original pad, buying a reproduction replacement, or using a dash cap (a thin plastic overlay that covers the cracks).

Recovering the original pad produces the best result but requires a specialist who can remove the old vinyl, repair the foam, and re-cover with new material. Just Dashes (Van Nuys, CA) is the industry leader for dash pad restoration. Reproduction pads are available from OER, Classic Industries, and Year One for most popular models.

Finding Original Trim Codes

Just like paint codes, interior trim codes are stamped on the data plate. The trim code tells you the original interior color and material. This is essential for authentic restoration — a car with the wrong interior color loses 10-20% of its value.

Trim codes vary by year and model within each manufacturer. Always cross-reference with a model-specific trim code guide. The build sheet provides the most detailed trim information, including material type (vinyl, cloth, leather) and grain pattern.

Frequently Asked Questions

• Where do I find my classic car's paint code?
  • GM: On the cowl tag (body data plate) riveted to the firewall in the engine compartment. Look for a 2-3 character code in the "PNT" or paint field. Ford: On the data plate (warranty plate) on the driver's door jamb. Look for a code starting with M, A, or D followed by numbers. Mopar: On the fender tag on the inner fender in the engine compartment. Look for a 2-3 character code in the paint row.
• How much does it cost to repaint a classic car in the original color?
  • Materials: $1,500-$4,000 (basecoat/clearcoat system, 2-3 gallons color + clear + primer + reducer). Labor: $3,000-$15,000 depending on quality level (driver quality to concours). Total: $4,500-$19,000. A driver-quality repaint is $4,500-$8,000. A show-quality repaint is $12,000-$25,000+. Always decode the paint code first to ensure you're using the correct original color.
• How much does a full interior restoration cost?
  • $3,000-$15,000 for a complete interior restoration. The range depends on the car (muscle car interiors are cheaper than luxury car interiors), the quality level (reproduction vs NOS materials), and whether you DIY or hire a professional. Seats are the biggest expense ($1,200-$3,500 for front seat upholstery), followed by the headliner ($400-$900) and dash pad ($600-$1,500).
• Can I restore my classic car interior myself?
  • Yes — many interior components are DIY-friendly. Carpet sets ($150-$350) and molded headliners ($150-$300) are easy to install. Door panels ($200-$500) are medium difficulty. Seat upholstery ($400-$800) and bow-style headliners ($120-$250) are harder and may require professional help. Dash pad recovery should always be done by a specialist.
• Does original paint color really affect value?
  • Yes — significantly. A car in its factory-applied original color is worth 15-30% more than the same car in a non-original color. For Mopar High-Impact colors (Plum Crazy, Hemi Orange, Go Mango, Panther Pink), the premium is even higher — 10-25% on top of the base value. Always decode the paint code before repainting to preserve maximum value.