Last updated: Sept 2026
Car shopping and vehicle discussions involve many abbreviations. Here are 40+ vehicle and transport full forms every driver and car enthusiast should know.
Full List of Vehicle & Transport Terms
| Abbreviation | Full Form | Meaning |
|---|---|---|
| AC | Air Conditioning | Cooling system in vehicles |
| ABS | Anti-Lock Braking System | Brake technology preventing wheel lock-up |
| ATV | All-Terrain Vehicle | Vehicle designed for off-road use |
| AWD | All-Wheel Drive | Power sent to all 4 wheels |
| BS | Bharat Stage | India's emission standards (BS-IV, BS-VI) |
| BHP | Brake Horsepower | Power output of engine |
| CC | Cubic Centimeter | Engine displacement measurement (bigger = more powerful) |
| CNG | Compressed Natural Gas | Clean fuel alternative to petrol/diesel |
| CRDi | Common Rail Direct Injection | Diesel engine technology; efficient fuel delivery |
| CVT | Continuously Variable Transmission | Transmission system (smooth power delivery) |
| DOHC | Dual Overhead Cam | Engine valve mechanism (more efficient) |
| ECU | Engine Control Unit | Computer controlling engine performance |
| EGR | Exhaust Gas Recirculation | Emission control technology |
| EPS | Electric Power Steering | Steering system using electric motor |
| ESP | Electronic Stability Program | System preventing skidding/loss of control |
| EV | Electric Vehicle | Vehicle powered by electric battery |
| FWD | Front-Wheel Drive | Power sent to front wheels |
| GPS | Global Positioning System | Navigation system locating vehicle |
| GVWR | Gross Vehicle Weight Rating | Maximum safe weight vehicle can carry |
| HDMI | High-Definition Multimedia Interface | Cable for connecting infotainment system |
| HSD | High-Speed Diesel | Type of diesel fuel used in vehicles |
| ICE | Internal Combustion Engine | Engine burning fuel (petrol/diesel) |
| IGBT | Insulated Gate Bipolar Transistor | Electronic component in electric vehicles |
| KM/L | Kilometers per Liter | Fuel efficiency measurement |
| MPFI | Multi-Point Fuel Injection | Fuel delivery system (efficient) |
| MPG | Miles Per Gallon | Fuel efficiency (USA measurement) |
| MPV | Multi-Purpose Vehicle | Family vehicle designed for passengers (Maruti Ertiga) |
| OBD | On-Board Diagnostics | System diagnosing vehicle problems |
| OEM | Original Equipment Manufacturer | Parts made by vehicle manufacturer |
| PMF | Particulate Matter Filter | Emission control filter |
| PRV | Pressure Relief Valve | Engine safety component |
| PSI | Pounds per Square Inch | Tire pressure measurement |
| PTC | Positive Temperature Coefficient | Heating element in vehicles |
| RWD | Rear-Wheel Drive | Power sent to rear wheels |
| SAE | Society of Automotive Engineers | Standards body for vehicle specifications |
| SAI | Secondary Air Injection | Emission control system |
| SOHC | Single Overhead Cam | Engine valve mechanism (less efficient than DOHC) |
| SUV | Sport Utility Vehicle | Large vehicle for passenger and cargo (Mahindra XUV, Creta) |
| TPMS | Tire Pressure Monitoring System | Alerts when tire pressure is low |
| VCR | Variable Compression Ratio | Engine technology adjusting compression |
| VDO | Vehicle Dynamics Optimization | System improving handling |
| VIN | Vehicle Identification Number | Unique 17-character number identifying vehicle |
| VVTI | Variable Valve Timing and Intelligence | Toyota technology optimizing valve timing |
| Watt | Unit of Power | Measurement used for electric motor power |
Frequently Asked Questions
Q: What is the difference between SUV and MPV?
A: SUV (Sport Utility Vehicle) is larger, more powerful, built on truck platform, high seating. MPV (Multi-Purpose Vehicle) is compact, fuel-efficient, built on car platform, family-focused (like Maruti Ertiga).
Q: What does CC mean in engines?
A: CC (Cubic Centimeters) measures engine displacement — the volume of cylinders. Higher CC = more power but more fuel consumption. Example: 1000 cc engine is smaller than 2000 cc.
Q: What is CNG and why should I buy a CNG car?
A: CNG (Compressed Natural Gas) is a clean, cheaper alternative to petrol. CNG cars cost less to run (50% cheaper fuel) and are better for the environment. Downside: less power and cargo space.
Q: What does KM/L mean and what is good efficiency?
A: KM/L (Kilometers per Liter) shows how far your car goes on 1 liter fuel. Good efficiency: 12-15 km/l for petrol cars, 15-18 km/l for diesel, 20+ km/l for hybrid/CNG vehicles.
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