Roadster X

A from-scratch drivable hypercar add-on for Grand Theft Auto IV: The Complete Edition (PC).

Roadster X is a fictional two-seat electric hypercar for GTA IV that can jump, hover and fly on ten cold-gas thrusters. Hop over traffic, hold a jump to keep rising, hover above the city, spin it round, throw it into tricks, and let the thrusters catch you before you hit the ground. Or just drive it: it has an active rear wing, fan downforce and butterfly doors. It's an add-on car, so no stock car is replaced.

Renders of the mod's own model.

In the game, at night under the elevated railway.

Features

• Add-on car roadsterx: spawn it with your trainer. Nothing in the game is replaced.
• Jump: tap to hop over traffic. Hold to jump higher: the car keeps rising while you hold, so you choose the height. Let go and it drops onto a soft landing.
• Hover and fly: double-tap to rise and hover. Climb with the jump button or the accelerator, or look up to climb straight up. Descend and travel with the stick, and boost. Double-tap again to drop: the thrusters catch the car just above the ground. In the air, one press of the jump button fires the jets again.
• Air tricks: hold the trick button in the air to turn the car freely: flips, rolls, spins. Push forward to keep moving while you do it. Kickflips on the road, and quick 180 and 360 spins.
• Soft landings: jumps, ramp jumps and ledge drops are cushioned near the ground automatically.
• Turn on the spot: from a standstill the car pivots smoothly; push further to turn faster. Powered drifts when moving.
• Ten thrusters with white vapor jets, trails and a glow at night.
• Active rear wing: Auto, Downforce, Airbrake and Stowed modes.
• Speed-scaled downforce with fan suction for grip.
• Water rescue: drive into water and the thrusters lift you back out (can be turned off).
• On-screen systems panel with gauges and the controls that matter right now.
• 49 original synthesized sounds: thrusters, wing servo, doors, motor.
• One settings file (plugins\RoadsterX.ini) with a comment on every line. It reloads while you play.

Requirements

• Grand Theft Auto IV: The Complete Edition for PC, version 1.2.0.59 (Steam or Rockstar Games Launcher). Windows, or a Mac with CrossOver.
• FusionFix 5.1.1 or newer (tested with 5.1.1 and 5.1.2). It loads the plugin and the car's files from the update folder.
• Aru's C++ ScriptHook 0.5.1 with the Complete Edition hook fix (ScriptHook.dll + aCompleteEditionHook.asi). The car's systems run as a ScriptHook script.
• Optional: a trainer that spawns add-on cars by model name, for example Liberty's Legacy 2.4.1.

None of these are included in the download.

Controls

See docs/CONTROLS.md for keyboard and controller. The game also shows them when you get in.

Known issues

• One passenger: Roadster X is a two-seater, so only one companion can ride.
• Butterfly doors: companions sometimes take a moment to get in through the butterfly doors.
• Text files: the car's text uses the update\common\text\*8.gxt files. If another mod uses the same file names, one of the two loses its text. Tell us and we'll move ours.
• Weight: the car is very heavy on purpose, so it shoves other cars around in a crash.
• Testing: tested on an Apple Silicon Mac with CrossOver and GTA IV CE 1.2.0.59. Windows reports are welcome.