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.

Roadster X hovering beside the airport control tower in GTA IV

In-game screenshot from GTA IV CE on Mac through CrossOver, 19 October 2026. HUD hidden; higher graphics settings. Cropped and scaled only.

Download

Download Roadster X 1.0.1 RoadsterX-1.0.1.zip · 4.85 MB

SHA-256 a7faa45928bb86941f6c174cc2d90ca331d82bcef387e881fcb9433e44dfca6c (checksum file). Also on Nexus Mods.

Then follow the install guide.

Version 1.0.1 was captured in-game on Mac through CrossOver for the 19 October shoot. Native Windows validation remains pending. Controls, plugin, sounds and handling are unchanged from 1.0.0. The flight shoot used the optional Infinite=1 air-reserve setting; default flight time is limited.

Renders of the mod's own model (version 1.0.1).

Roadster X in the game at night, driving under the elevated railway

In the game, at night under the elevated railway (the 1.0.0 body).

In-game gallery

GTA IV: The Complete Edition, 19 October 2026. Click a photo for the full-size view.

Roadster X on the Francis International apron, 747s behind

Rear three-quarter: light bar, diffuser and the four rear thrusters

Profile, control tower behind

Active rear wing raised to airbrake (35 degrees)

E E: lift jets fire and the car rises into a hover

Hovering at about 30 m beside the control tower

Hovering in profile in front of the control tower

Flip trick in the air (hold Q + aim): the vapor traces the loop

Barrel roll, upside down over the runway

Hold R in the air: rear thrusters boost it forward

Ground boost (hold R) across the apron, wing deployed

Ground kickflip (Q Q), caught upside down

Night in midtown, Live Central neon behind

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.