The Real Reason Cars Are Getting Heavier

Опубликовано 25 января 2026, 12:00

Modern cars are heavier than ever before. Even small family cars now weigh hundreds of kilograms more than their equivalents from 20 or 30 years ago.
In this video, we explain why modern cars are getting heavier, looking at the main factors driving weight increases across the industry. That includes safety regulations, structural requirements, comfort features, infotainment systems, and the impact of electrification and hybrid technology.
We also explore how extra weight affects fuel efficiency, electric range, performance, braking, tyre wear, and running costs, and whether heavier cars are actually safer or better to live with.
This explainer breaks down where the weight comes from, why manufacturers are struggling to reduce it, and what it means for buyers choosing their next car.

Looking for a new car? It’s time for Autotrader:
autotrader.co.uk/?utm_source=y...

Watch expert car reviews and recommendations on our official YouTube channel to help make finding your next car easier than ever.

Check back for the latest new car reviews, plus:
✅ car advice and explainers
✅ used and new car guides
✅ head-to-heads

Subscribe for more from Autotrader UK ➡️ bit.ly/1AqiIny
Want to be the first to see our new videos? Enable notifications 🔔

Chapters 📖
00:00 How much heavier modern cars are
01:13 Why cars are getting heavier
01:40 Safety regulations and hidden weight
03:15 Why electric cars weigh more
04:10 The rise of SUVs in the UK
04:54 The real cost of heavy cars
05:33 heavy cars and road damage
05:51 Increased braking distance and energy use
06:35 Is there a way back?
06:49 Lightweight materials and future tech
07:30 Next-generation battery technology
08:25 What drivers can do right now
09:19 Do you think heavy cars actually matter?