MotorSim 2 is an advanced performance calculator designed specifically for land vehicles, offering a detailed physical simulation of their acceleration performance in a straight line. It's important to note that this app is not a driving game but a tool for enthusiasts and professionals to analyze vehicle dynamics.

With MotorSim 2, users can customize a wide range of technical specifications to simulate and evaluate vehicle performance. The app features an interactive simulator complete with a speedometer, rpm meter, throttle, brake, and gear shift options (both manual and automatic). It also includes a procedurally generated engine sound, enhancing the realism of the simulation, and a visual representation of the vehicle's position over a 1/4 mile track segment. Users can save a 'ghost' or 'shadow' of a particular setting to compare its performance against other configurations later.

The configurable vehicle parameters in MotorSim 2 include:

• Max Power
• Power curve, which can be defined point by point
• Torque curve, automatically defined as power = torque * rpm
• Max engine RPM (ignition cutoff)
• Gears configuration, supporting up to 10 gears
• Resistances, including Cx, frontal area, and rolling resistance coefficients
• Vehicle weight
• Tyre size
• Shift time
• Transmission efficiency

The app calculates various performance metrics, such as:

• Maximum speed
• Acceleration times from 0-60 mph, 0-100 mph, 0-200 mph, 0-300 mph, and beyond
• Any other performance metrics that can be measured using the interactive simulator

MotorSim 2 is an essential tool for anyone looking to delve deep into the performance aspects of land vehicles, providing a comprehensive platform for simulation and analysis.