A custom car dashboard comes together through five decisions made in order: scan the existing interior, plan the layout around the driver, specify the gauges and screens, choose the materials, and match a fabrication method to those materials. Skip ahead and the dash that looked right in a sketch ends up fighting the car it was drawn for.
That sequence covers the design side. For the fitment engineering that turns a design into interior parts that sit flush, our companion piece on custom center console and interior fabrication picks up where this one stops.
Why Should a Custom Car Dashboard Start With a 3D Scan?
Because the dashboard has to fit against the windshield base, both windshield pillars, the door cards, the firewall, and the center console, and a tape measure does not capture surfaces like those. A 3D scan records those surfaces in one data set, so the design starts from the car as it actually is, not from tape-measure guesses.
We would scan before sketching anything. A clash found in the data is a design change; the same clash found on a finished part is a rebuild. On a restoration, scanning the original dash before it comes out also preserves factory geometry, which matters if a cracked or missing piece has to be reproduced later. On a full custom build, the scan gives the designer an accurate shape to sketch over.
Where Do the Gauges and Controls Go on a Custom Dashboard?
Start at the driver’s seat and work outward: primary gauges inside the natural sight line through the steering wheel, driving controls within reach without leaning, and secondary functions, such as audio or climate, toward the center. Sketching those zones on the scanned interior shows early whether a layout works in the car or only on paper. We would keep frequently used functions on physical controls, because touchscreen-only controls pull the driver’s eyes off the road. The European New Car Assessment Programme (Euro NCAP) has rewarded physical controls for indicators, hazard lights, the horn, and wipers in its scoring since 2026, for the same reason.
Then leave room for what sits behind and beside the dash surface: defroster ducts, HVAC (heating, ventilation, and air conditioning) vents, wiring harnesses, steering column mounts, the glovebox opening, and the airbag modules. Check the car’s service information for where the airbags sit before any panel is drawn over them.
What Goes Into a Custom Gauge Cluster?
The first choice is the display type: analog gauges, a digital screen, or a mix. We would use analog gauges where a period look matters, as on a restomod or period-correct build, and a digital screen where the driver wants more readouts than the dash has room for. A digital main display with a few analog gauges for the readings you check most is a pairing worth considering.
Screens raise their own questions. A hood or recessed bezel for shading belongs in the design, and the screen’s exact size and mounting depth have to be known before the dash surface is drawn. That is the job on a 1966 Chevrolet C10 pickup, where we are finishing an insert, printed in a custom blend of two resins, to hold a Holley EFI 12.3 Pro Dash. Gauges and screens should also come out without taking the whole dash apart.
A late-model car adds one more item. If the car carries engine data on its controller area network (CAN), the shared communication bus its electronic modules use to exchange messages, a digital cluster that shows that data needs a way onto the bus. Plan that connection and a clean ignition-switched power feed alongside the layout, not after it.
Which Material Works Best for a Custom Dashboard?
Match the material to the part: carbon fiber where weight and stiffness matter, fiberglass where cost does, aluminum for flat gauge panels and switch plates, and printed ASA (acrylonitrile styrene acrylate) for bezels, vent surrounds, and small trim. Carbon fiber is lighter and stiffer than fiberglass, while fiberglass costs less, so the real question is whether the weight saving is worth the price on a part that mostly has to hold its shape.
For printed trim, we would pick ASA over ABS (acrylonitrile butadiene styrene), because ASA resists UV (ultraviolet) light better and holds its color in sun. Sunlight is a harder test than the cabin temperature suggests. In a Tempe, Arizona study of parked cars, dashboard surfaces averaged 157°F and the cabin air 116°F after an hour in the sun. Heat resistance and UV stability belong on the checklist from the first day.
Wrapped finishes need a note of their own. Ask the trimmer which covering will be used and how thick it is before the shape is final, because the covering sits on top of the surface that was drawn and the fit around edges and seams depends on it. Wrapping a printed sample first shows how the material behaves around tight curves before the final part is made.
What Happens Once the Dashboard Design Is Settled?
The material decides the fabrication method. For carbon fiber and fiberglass, we can print the master pattern from the CAD (computer-aided design) model, and a mold is then made from it; the composite part is formed in that mold. Printed parts come straight from the file.
Before any final material is committed, put a 3D printed test piece in the car to check reach, sight lines, and clearance with the real seats and steering wheel in place. That test fit is where the scan pays for itself, because a problem caught on a printed piece is fixed in the file before any carbon fiber is made.
A custom car dashboard works when the design, the car, and the fabrication method agree from the first sketch. Kemperle Industries can take a build from the interior scan through design to printed and routed parts, and the aftermarket automotive services page shows where else that applies.
Have a dash design on paper or in CAD? Send it to our design and engineering team with a few photos of the car, or phone 718-557-9578, and we will tell you where it stands before anything is cut.
Sources: ASU and UC San Diego dashboard heat study; Polymaker on ASA; Zoltek and Rock West Composites on carbon fiber versus fiberglass; Kvaser and CSS Electronics on CAN; Easy Composites and Fibreglast on pattern and mold making; ETSC and GoAuto on Euro NCAP physical controls.
