Fuel combustion chamber - cutaway
Here, fuel and air are microseconds away from being compressed and ignited in a direct-injection petrol engine. How much it can be compressed depends on the octane rating of the fuel
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What's the difference between regular and super unleaded fuel?

You might think pricier petrol liberates some extra horsepower from your car's engine - we explain when that's not the case

What's the difference between regular and super unleaded fuel?
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Under the skin: How lasers let you do origami with stainless steel

Localised heating using lasers enables Swedish firm Stilride to fold stainless steel sheet origami style

Under the skin: How lasers let you do origami with stainless steel
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Under the skin: How Chevy's new crate V8 is bigger and bolder

The 10.3-litre ZZ632/1000 is the most powerful crate engine Chevrolet has ever produced

Under the skin: How Chevy's new crate V8 is bigger and bolder
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Photo: Getty Images
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Under the skin: How landfill plastic can make hydrogen for cars

Powerhouse Energy Group believes only 10% of plastic worldwide is recycled, wants to turn the rest into clean hydrogen

Under the skin: How landfill plastic can make hydrogen for cars
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Under the skin: How acoustic glass makes car conversation easier

Subduing noise in a similar frequency range to human speech has become even more important in the EV era

Under the skin: How acoustic glass makes car conversation easier
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Under the skin: new battery tech is self-healing and fast-charging

Storedot’s new extreme fast-charging technology can be applied to existing lithium ion battery technology

Under the skin: new battery tech is self-healing and fast-charging
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Under the skin: Breakthrough creates faster, cheaper, greener carbonfibre

Retrac’s 60-tonne electro-servo press can turn out high-quality carbonfibre components in four minutes

Under the skin: Breakthrough creates faster, cheaper, greener carbonfibre
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Under the skin: How Audi's Dakar raider pushes EV tech boundaries

The RS Q E-tron Dakar Rally contender is limited to 105mph by the regulations but can reach 62mph in just 4.5sec on loose surfaces

Under the skin: How Audi's Dakar raider pushes EV tech boundaries
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Under the skin: why cooling fluids are key to improving EVs

Petronas expects to improve the efficiency of EVs by 10% through the development of new direct cooling fluids

Under the skin: why cooling fluids are key to improving EVs
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Under the skin: Why rattan could be the next big thing in car sustainability

Sustainable material is said to have a significantly lower carbon footprint than ABS polymer or hardwood interior materials

Under the skin: Why rattan could be the next big thing in car sustainability
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Under the skin: how the car painting process is going green

New inkjet-style printing process reduces energy consumption

Under the skin: how the car painting process is going green

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