Technological progress, a strong gold backed US dollar, Atlas V rocket putting man on Earth's Moon, while in the automotive realm jet engine technology developed preceding & during WWII became an amazing automotive engine in the Chrysler Turbine Car, though the basis of this vehicle can trace it technological history all the way back to the 1930s.
Crafting 55 examples of this prototype turbine car, Chrysler made these bronze-colored (golden color) cars styled by Italian car design firm Ghia, & loaned a few to random members of the general public so they could test them in real world driving. Only 9 examples exist today, 7 in museums, 2 belong to wealthy private car collectors. It was ultimately leaded fuel that killed it. Tetra-ethyl Lead was added to fuel until 1975 in America, when MTBE became the dominate fuel oxygenator & ISOM units at oil refineries allowed the production of isomers of gasoline that raised the octane rating or knock resistance of unleaded fuels. Lead in fuel also poisons catalytic converters, so the phase away from leaded gasoline was needed for emissions-controlled fuel injected cars like we have today.
Back in the 1960's the automotive world was dominated by engines featuring fuel wasting rich fuel air ratio fueling devices called carburetors, still utilized on small air cooled engines of weed whackers, chainsaws, generators, lawn mowers, garden power equipment with a small engine, where electronic fuel injection, ECU, O2 sensor & so forth would be too costly, too complicated & too large to integrate, as would water cooling, or catalytic converter to clean up the exhaust. That means that typical gasoline fueled lawn mower without automotive emissions controls emits 25X more toxic smog forming pollutants than a new gasoline fueled car, truck or SUV.
Turbochargers very popular with automakers of today's emissions-controlled gasoline & diesel fueled vehicles, hybrids & even some PHEV have turbocharged engines. In a turbocharger hot pressurized exhaust gas forces its way past a super alloy axial impeller causing it to spin at up to 130,000 RPM on an oil film lubricated shaft bearing rod connected to a similar intake cold air compressor that takes in outdoor air & compresses it for forced induction or boost pressure, often chilled down with an intercooler heat exchanger like an air to air or air to water radiator, when the turbo compresses intake air that air heats up so the intercooler chills pressurized intake air down so more air can be mixed with fuel often direct injected into the engines cylinders to make more power & more torque at lower RPM.
Turbos work especially well in stronger heavier diesel engines with compression ignition & glow plugs. When boost happens in a large heavy duty commercial diesel engine it shove the really well sealed pistons down very strong cylinders that already have to survive 25:1 compression by design. Diesel engine blocks, head, crank, all the energy harvesting parts of a diesel engine are much thicker, much stronger, much longer lasting & far more resistant to the increased pressure & temperature of boosting with a supercharger, turbocharger, or combination of both.
I have been advocating the use of a motor generator on the cold air compressor of a turbocharger in automotive HEV applications, since an E-motor Turbocharger can generate or take in 7kw of electricity for E-boost no spool lag acceleration enhancement, or to act as energy regenerator if the digital wastegate directs excess boost pressure back to the compressor of the digital VGT turbo, then it can become an energy generator to charge the HEV battery pack, thereby reducing fuel consumption & improving energy economy or fuel economy, so more miles or kilometers of range per fill up with lower tailpipe emissions :)
In Toyota HSD for example an electric motor generator upgraded turbocharger can improve specific power of the engine, like the Turbo of the GR Corolla, but in a hypothetical 6 gen. GR Prius with 268 HP engine & 248 HP traction motor MG1 & 123HP motor generator MG2. In this proposed drivetrain design of a next gen Prius by Toyota, a Gazoo Racing version, the E-Boost Turbo can radically improve engine performance, but tuned specifically to enable even more fuel economy, the entire HSD turbo system can achieve 85-100 MPG on regular unleaded fuel in ECO mode, or get 25 MPG in Track Mode AWD with the VGT maximizing boost & MG1 operating at full power, the 15KW solid state battery in Unlocked Mode, for Saturday racetrack fun, while fully adjustable suspension optional airbags, can provide lowering or lifting for enhanced highway or offroad use cases, think Dakar racing GR Prius that also drives nice as a daily driver on streets commuting with super ultra low emission & class leading fuel economy for the lowest Total Cost of Ownership for a GR Prius of its performance level :)