I want to hear people's thoughts:
We have an 18 year old Subaru Outback that we bought in 2010. In the last 12.5 years, we've driven 80000km, which has caused approx 17.6 tCO2 (about 200gCO2/km).
Is it worth aiming to replace this car with an EV? My understanding, from reading Volvo's report about embodied carbon in their new cars (https://www.volvocars.com/images/v/-/media/market-assets/intl/applications/dotcom/pdf/c40/volvo-c40-recharge-lca-report.pdf, p25) is that the manufacture of a new petrol car produces 15.7 tCO2, and a new EV produces 26.4 tCO2.
Based on these numbers, I estimate it would take approx 17.5 years for us to repay the embodied carbon if we bought a new electric car, compared with keeping our existing car.