Spoolvia — Real-World Circuit Racing

RENDER QUALITYPerformance keeps phones cool; Ultra adds shadows, bloom and ambient occlusion.

TIME OF DAYSun position, sky and light. Changes instantly.

WEATHERRain lowers grip and wets the road; fog shortens the view.

RACING LINEWhere to drive and where to brake: red = brake, yellow = turn without throttle, green = accelerate. Braking points move earlier in the rain.

ON-SCREEN CONTROLSTouch wheel and pedals on this computer. Auto: shown when you touch the screen.

STEERING MODEOn-screen wheel or left/right buttons (touch screens).

GEARBOXAutomatic changes gear for you. Manual: shift with the paddles (touch), Q / E (keyboard) or the bumpers (controller).

TYRE WEARTyres lose up to 12 % of their grip as they are worked (about 45 minutes of hard laps). A new race starts on a new set.

ABSOff: nothing stops the wheels locking under the brake. The car stops about 11 % later and cannot steer while they are locked.

TRACTION CONTROLSport: more wheel slip, and no power held back when the car rotates. Off: the rear wheels spin freely in the wet.

STABILITY CONTROLSport: half the help. Off: nothing catches a slide.

BRAKE BALANCEMoves 4 % of the braking to the rear or the front. Felt most with ABS off and on part pedal.

FUEL, DAMAGE, PIT STOPSThe car burns fuel (a tank lasts about 85 minutes), a crash costs power and pulls the steering. Stop within 150 m of the start line to refuel, repair and fit new tyres.

OPPONENTSRival cars that follow the racing line, move aside for slower cars and can be hit. They start ahead of you on the grid. Applies from the next race.

RACE LENGTHFREE drives without end. A set number of laps ends with a results card (your place, total time, every lap).

SESSIONQualifying: laps with no rivals (3 if race length is FREE). Your best lap decides where you start the next race. Applies from the next start.

BRAKE CUE"BRAKE 80 M" counts down on screen before each braking point, then "BRAKE" while you are faster than the racing line needs.

TYRE COMPOUNDSoft: 4 % more grip but wears 45 % faster. Hard: 4 % less grip, wears a third slower. Changing it fits a new set.

CHANGING WEATHERThe weather moves on every 2 to 4 minutes: clear, cloudy, rain, cloudy, clear. The road takes about a minute to get wet and two to dry.

GHOST LAPA see-through car replays your best lap on this circuit from the start line. Saved on this device.

WHEEL VIBRATIONA short tick when the wheel turns past the tyres' grip; the rim turns amber, red when far past.

TYRE MODELReal tyre physics, or assisted grip.

STEERING SENSITIVITYHow much wheel a corner needs. 60 %: the grip at about 3/4 of the wheel at speed; higher is quicker (100 %: about half).

PRECISION RESPONSE60%

ENGINE AUDIORecorded flat-six engine and tyre sounds.

DEBUG LOGRecords the whole drive: inputs, steering, tyres, g-forces, track position, laps, corners, frame rate and events. Copy it from the strip at the top of the screen (or here, or in the pause menu) and paste it in the chat.

RENDERERDETECTING

RESOLUTIONAUTO

VERSIONSPOOLVIA

Circuit layouts are modelled on real-world venues for a driving game. Spoolvia is independent and not affiliated with, endorsed or sponsored by any circuit, series or car maker (including Porsche AG). All trackside advertising shows Aahav Labs (aahavlabs.in). Credits and licences

READY TO RACE.

Alpine Pass

PAUSED

SETTINGS

RACE SETUP

ROTATE YOUR DEVICE.