Here in Phoenix, winter means cool mornings, hoodie weather, and perfect cruising temps. We are lucky. Our “bad weather” days are usually still good enough to fire up the car and go for a drive.

For a lot of you, that is not the case. The roads are salted, the driveway is frozen over, and your classic is parked until the forecast cooperates. The upside: winter is prime interior season. If you cannot drive the car, you might as well make the inside feel brand new for the first clear day of spring.

Below are five interior upgrades we use on real Fesler builds—C10s, Camaros, Chevelles, Novas, OBS trucks, and more—that actually change how the vehicle feels from the driver seat.

1. Fiberglass Door Panels That Match the Build, Not Just Fill the Door

Stock door panels are usually the first place a nice interior starts to fall apart. Warped cardboard, cracked plastic, and random speaker holes will make even a high-dollar paint job feel cheap the second you open the door.

Fesler door panels are CAD modeled and built from hand-laid fiberglass with a smooth gel coat. They are designed as direct bolt-in replacements, so you get a modern, high-end look without fighting brackets or sheetmetal.

Browse Fesler Door Panels ↗

2. Molded Carpet Kits That Actually Fit Your Floor

Old carpet never ages gracefully. It fades, flattens, and holds onto every bit of dust, road salt, and shop debris. Winter is the perfect excuse to gut it and start over from the floor up.

Our carpet kits are made in the USA by Auto Custom Carpets (ACC) and offered through Fesler. Each kit is CAD cut and molded to the exact floorpan, so it hugs the tunnel and footwells instead of bunching up like universal roll carpet.

If you are building a list of “first interior upgrades” for winter, molded carpet kits always land near the top. It changes how the cabin looks, feels under your feet, and how quiet the car or truck is.

Explore Carpet Kits ↗

3. One-Piece Headliners That Clean Up the Roofline

A sagging headliner ruins the feel of an otherwise clean interior. Once the fabric starts to drop, every drive turns into a reminder that the car is due for attention overhead.

Fesler one-piece headliners are hand-built from fiberglass right here in Arizona. They drop in cleanly, finish the roof, and give your upholsterer a solid foundation for suede, vinyl, or leather.

• 1967–72 Chevy C10 one-piece fiberglass headliner
• 1973–87 Chevy Squarebody one-piece fiberglass headliner
• 1967–69 Camaro custom hard headliner (works with flush glass)

Find Fesler Headliners ↗

4. Steering Wheels & Touch Points You Feel Every Drive

The parts you hold and move every single time you drive have an outsized effect on how finished a vehicle feels. You will notice a new steering wheel and upgraded handles more than almost anything else in the cabin.

On many of our C10 and muscle car builds, we pair high-end steering wheels from Sparc Industries with Fesler billet interior door handles and matching hardware. The goal is simple: everything you touch should feel as dialed as the rest of the build.

• Upgraded steering wheel for better feel and driving position
• Billet interior handles that match your door panels and trim
• Fresh window cranks or power window switches to finish the look

If your winter budget is tight, upgrading steering and touch points is a smart way to make the truck or car feel different without tearing the whole interior apart.

5. Full Interior Kits for 1967–72 C10 Trucks

If you are working on a 1967–72 C10 and you are ready to go all-in this winter, our full C10 interior kit is the cleanest way to get a matched set of parts that actually belong together.

The 1967–72 C10 full interior kit brings the core pieces into one package:

• Dash overlay
• Door panels
• Kick panels
• One-piece headliner
• Rear interior trim panel

Everything is CAD modeled so the lines flow from the dash into the doors and back to the rear panel. Pair the kit with a Fesler carpet kit and flush-mount glass, and you can turn a bare shell into a finished cabin over the course of one winter.

View the 1967–72 C10 Full Interior Kit ↗