What Vehicle Tech guides cover
Vehicle tech should make a car easier to use, not harder to live with. This section covers head units, audio, cameras, driver aids and EV charging in daily practice. We judge upgrades by whether they work every day without rattles, drain or warning lights.
How we test Vehicle Tech advice
We install and use the hardware rather than reading the spec sheet. Compatibility, wiring and software updates are checked for the exact model wherever possible. Claims about range and charging speed are compared with real journeys and seasonal conditions.
Start with these Vehicle Tech guides
Read the tech upgrade guide first, then the EV charging guide if you are considering electric. One covers the cabin, the other covers the energy side of ownership. Begin with Car Tech Upgrades 2026: Screens, Audio and Driver Aids and our companion guide EV Charging Tech 2026: Home, Public and Road-Trip Realities. For wider context, see U.S. DOE Electric Vehicles.