wiiyii Head Up Display P8 Car HUD — A-Pillar or Dashboard Mount, OBDII+GPS Dual System, Speed/RPM/Voltage

wiiyii Head Up Display P8 is a dual-system HUD that projects speed and vehicle data onto a transparent screen, and can be mounted on the A-pillar trim or placed on the dashboard for most 2008+ cars.

This compact HUD combines OBDII and GPS inputs to show real-time speed, RPM, voltage, clock, coolant temperature and other driving parameters without forcing you to look down at the dash. Designed as the first consumer model that fits on the A-pillar trim, the P8 offers flexible installation, eight customizable display interfaces and a quick set-up process that starts showing data within minutes of power-on.

How does the P8 keep my eyes on the road?

The P8 projects key driving information onto a reflected transparent screen placed in your line of sight, reducing the need to glance down at gauges. You can position the unit to match your preferred angle so critical data appears where you naturally look while driving.

• Transparent HUD screen reflects speed and alerts into your eyeline
• A-pillar or dashboard mounting options for optimal sightlines
• Adjustable angle to suit driver height and seating position
• Bright, clear numerals designed for daytime and night visibility

What information does the P8 display and how accurate is it?

The P8 reads vehicle telemetry from either the OBDII port or GPS satellite, so you get both ECU-sourced metrics and GPS-derived speed. Default startup uses the OBDII feed, while GPS mode is available for backup or when OBD data is limited.

• Speed (from OBDII and/or GPS), RPM and engine-related metrics
• Battery voltage and coolant temperature readings
• Clock and customizable display formats across eight interfaces
• Rapid refresh so values update in real time while driving

How easy is installation and initial setup?

Installation is straightforward: plug the unit into USB power for dashboard placement or fit it onto the A-pillar trim using the included mounting method. The P8 locks onto GPS within a short drive and begins to show speed quickly; OBDII setup is plug-and-play on compatible vehicles.

• Two mounting choices: A-pillar trim clip or dashboard pad
• USB power connection only for most dashboard installs
• OBDII connects directly to vehicle port for ECU data readout
• Typically acquires GPS signal within a short drive

Will the P8 work with my car and what are the limits?

The P8 is designed to function in most vehicles from 2008 onwards that support standard OBDII protocols; if OBDII data is not available, GPS mode still provides speed information. Check your vehicle’s OBDII compatibility if you rely on ECU-derived metrics like coolant temperature or RPM.

• Compatible with most 2008+ cars supporting standard OBDII
• GPS-only mode supplies speed when OBDII data is unavailable
• Default mode reads from OBDII; switchable to GPS as needed
• Meets CE, FCC and RoHS standards for electronics safety

Who is this for: The wiiyii P8 HUD suits drivers who want to minimize dashboard glances and keep essential driving data visible—commuters, ride-share drivers, and anyone who values a safer, more informed drive. It’s especially useful for owners of 2008-and-newer vehicles who want quick, flexible installation and a single device that blends OBDII diagnostics with GPS speed readouts. If you need a compact HUD that adapts to different cars and seating positions while supplying multiple readouts and display styles, the P8 offers a practical, easy-to-install solution.