# Combustion road vehicles and Platinum

Their prices have moved together.

Source page: https://www.materialinsights.org/links/combustion-road-vehicles-and-platinum/

[Combustion road vehicles](https://www.materialinsights.org/energy/e_road_ice/) (energy) and [Platinum](https://www.materialinsights.org/commodities/platinum/) (commodity): 1 relationship.

## How they are linked

### 1. Price link: car demand

*Cost and price · Moderate · Both ways*

Most platinum demand depends on combustion-engine vehicles, especially diesel trucks. The proxy is a US car price index, which follows inflation rather than car volumes, so the correlation is slightly negative (-0.15 monthly).

- **-0.15** monthly change correlation
- **-0.32** 12-month change correlation
- **-1.04** fitted elasticity

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