# Combustion road vehicles and Internal combustion engines and gensets

Energy flows from internal combustion engines and gensets to combustion road vehicles; their prices have moved together.

Source page: https://www.materialinsights.org/links/combustion-road-vehicles-and-internal-combustion-engines-and-gensets/

[Combustion road vehicles](https://www.materialinsights.org/energy/e_road_ice/) (energy) and [Internal combustion engines and gensets](https://www.materialinsights.org/energy/e_engines/) (energy): 2 relationships.

## How they are linked

### 1. Energy flow

*Physical flow · 81% of flow · Internal combustion engines and gensets → Combustion road vehicles*

Petrol and diesel engines drive most road vehicles.

- **81%** of Internal combustion engines and gensets's energy goes this way

### 2. Price link: powertrain

*Cost and price · Moderate · Both ways*

The engine is one of the costliest parts of a combustion car. Monthly moves hardly correlate, but yearly moves correlate at 0.43, showing that engine and vehicle prices share a slow US manufacturing cost trend.

- **-0.04** monthly change correlation
- **0.43** 12-month change correlation
- **0.83** fitted elasticity

Built from the site data on production routes, energy flows, industry value chains, input-output tables and prices.