Land vehicle performance calculator.
MotorSim 2 is a performance calculator for land vehicles. Note: this app is not a driving game—it simulates the physics of straight-line acceleration only.
MotorSim 2 lets you configure technical specifications and compute performance outcomes. It features an interactive simulator with a speedometer, RPM gauge, throttle, brake, and gear shift (manual or automatic), complete with procedurally generated engine sound and a visual representation of the vehicle on a quarter-mile track. After testing a setup, you can save a ghost car to compare its performance against other configurations later.
Configurable vehicle parameters include:
- Maximum Power
- Power curve (definable point by point)
- Torque curve (derived automatically from power and RPM)
- Maximum engine RPM (ignition cutoff)
- Gear configuration (up to 10 gears)
- Resistances (drag coefficient, frontal area, rolling resistance)
- Vehicle weight
- Tire size
- Shift time
- Transmission efficiency
Performance outputs include:
- Top speed
- Acceleration times: 0–60, 0–100, 0–200, 0–300, etc.
- Any other metric measurable via the interactive simulator.
