Geneva is the auto show of choice for a 1-percenter hedge fund manager to find an ostentatious car on which to blow his or her latest bonus check. And because ultra-fancy cars generate the profit margins needed to fund bleeding-edge auto-industry innovations, it's cars like these where you first see the latest, coolest technologies appearing. Here are five we spotted on the floor this week.

More from our Geneva coverage:

Micro-turbine Hybrids: Pininfarina Hybrid Kinetic H600 & Techrules Ren

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Turbines turned out to be lousy car engines when several automakers tried them out in the '60s, but they can serve as excellent generators. In that capacity they can operate at a constant, optimized speed, and because it's possible to transfer heat from the exhaust to the incoming charge air and recover that energy that would otherwise be lost, they're reasonably efficient and clean when spinning at their "sweet spot" speed. The number of moving parts is drastically lower than in a piston engine simple, and turbines require minimal maintenance or cooling.

Jaguar proposed a range-extended hybrid turbine in its fetching 2010 C-X75 concept supercar, but nothing came of it. This year's Geneva show had one concept and one prototype that both featured a series-hybrid powertrain utilizing a micro-turbine generator. Pininfarina's four-door luxury sedan concept was built in conjunction with the Hybrid Kinetic Group, a Hong Kong-based firm involved in the development, manufacturing, and marketing of new energy vehicles and the key components and systems that drive them. It features a 60-kW (80-hp) turbine that achieves 40 percent thermal efficiency and only requires maintenance every 10,000 hours (if you average just 20 mph, that's 200,000 miles). The prototype hails from Chinese automotive R&D company Techrules. Its TREV (Turbine-Recharging Electric Vehicle) supercar solution also employs a large battery that gets topped up as necessary using a micro turbine. The one on display in Geneva produced 30 kW (40 hp), but an 80 kW (107-hp) unit is also promised. Total vehicle range with such systems can be truly impressive. Techrules says 21.1 gallons of diesel will last for 727 miles. The chassis on display was tested at Monza the week before Geneva, and the design is being readied for production, so this concept looks pretty certain to see the light of day.

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Smart Connected Tires

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Now that we have refrigerators that can order milk for us when we're running low, nobody should be surprised that tires will soon be able to notify you via cell phone when they suffer a puncture or slow leak, and/or help you schedule repair or maintenance. This new generation of smart tire will also be able to monitor tire wear and schedule maintenance and replacement. This helps maximize vehicle uptime for fleets today, and in tomorrow's autonomous ride-sharing world, it'll help vehicles maintain themselves. It is also possible for smart connected tires to inform the cloud and warn other motorists about things such as puncture-risk hazards.

Goodyear IntelliGrip features a sensor mounted to the inside of the tire tread that directly measures actual pressure and temperature (some such readings with today's tire-pressure monitoring systems provide inferred values). These sensors also compute information about tire wear and the available friction of the road surface. All of this information is communicated with the car and the cloud. The sensor is powered by a piezo-electric generator (a piezo crystal gets compressed every time the sensor gets deflected as that part of the tire hits the ground, squeezing out a few electrons). Goodyear has equipped some cars in the California-based semi-autonomous Tesla car-sharing service Tesloop with this technology to gauge its usefulness in fleet management.

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Pirelli Connesso also features a sensor glued inside the tread of a tire, though a battery designed to outlive the tire powers the sensor. It communicates via Bluetooth technology. Pirelli fleshes the idea out a bit more with smartphone apps that can keep you apprised of your tires' actual instantaneous temperatures and pressures (presented on a graph showing low, normal, and high ranges) and estimate each tire's wear based on temperature and usage data compelled over time. Sadly, because this sensor is not monitoring the actual tread depth, this system will not be able to show you real-time tread loss during a prolonged Hellcat burnout. Of course, the system will first become available on premium refined vehicles favored by the set that doesn't do burnouts, buying Pirelli valuable time to develop that crucial feature.

Goodyear Eagle 360 Urban Spherical Tire

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Goodyear returned with an Urban update on last year's wild and crazy Eagle 360 spherical future tire. It adds artificial intelligence and a transformable bionic skin capable of adapting the tread surface to wet or dry conditions. Dimples get sucked up into the sphere in the wet, then pressed back down for greater rubber coverage when the road dries out. Such tires would have to be nonpneumatic, supported by foam or some other flexible internal structure. Naturally it is also chock-full of sensors to monitor its own condition, to perceive the road conditions, and to warn drivers (and probably disable the vehicle) if it has been loaded beyond what the tire structure can support. The bionic skin is made of a super-elastic polymer that can expand, and contract, and possibly even heal itself in certain situations. As before, at its center is a permanent magnet setup that provides magnetic levitation of the body over the tire and receives the electrical signals that make it turn, both when delivering power and while steering the vehicle. We eagerly await the opportunity to try out a prototype of this concept, but no such thing is available yet.

Pirelli Color Tires

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The latest fashion craze in bespoke vehicle accessorizing might be colored sidewalls, or so hopes Pirelli. The company managed to outfit many production and concept vehicles in Geneva with its new line of color tires. They come in four standard colors (red, white, yellow, and silver) but can also be ordered to match any of the 3,000 Pantone shades—for a bit more money. Unlike the good old whitewall days, when the color was baked into the sidewall and then exposed by carving off an outer layer of black, these stripes are applied to the finished tire in three layers. There's an adhesion layer, a color layer, and a clear protection layer. Sadly, that top layer doesn't put up much of a fight against curb-rash, though Pirelli talks about a cosmetic repair kit to dress up scratched color sidewalls. Better to buy curb feelers or avoid parallel parking. This concept is rolling out first on P Zero, P Zero Corsa, and Sottozero winter tires, and they can be ordered by navigating to www.shop.pirelli.com and finding your vehicle. This way the tires are guaranteed to match the original-equipment specifications. Sorry, for now they're only available to fit fairly high-end cars, and—like Scandinavian speeding fines—the pricing is based on your ability to pay (as inferred by the vehicle's sticker price). To wit: tires in one of the standard colors for a Porsche 718 Cayman cost $1,840 for a set; for a Lamborghini Aventador, $4,980. That's a premium of $742 for the Porsche, $3,692 for the Lambo relative to Tirerack pricing for P Zeros. But then, what price fashion?

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Brembo ECS aluminum calipers

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