
Atpimages/Getty Images
A modern F1 car steering instrumentality is insanely analyzable and expensive, pinch capable buttons, switches, dials, and flaps to confuse moreover nan astir established Bop It! champions. So F1 drivers request a elaborate knowing of which fastener does what, and erstwhile to usage it, to springiness themselves nan champion imaginable chance of occurrence during a race. Some are reasonably obvious — the PIT fastener confirms to a squad that nan driver understands they are pitting that lap, and nan DRINK fastener sets nan pump moving truthful that drivers tin return a sip — but others, for illustration nan K1 and K2 buttons, aren't truthful self-explanatory.
That's not to opportunity that they're immoderate little important, though; K1 and K2 are really among a driver's astir powerful tools. Both are utilized to deploy further electrical power from nan car's hybrid system, but they activity successful different ways. The K1 fastener provides a short but powerful burst of speed, and is champion utilized erstwhile either intimately attacking aliases defending against a rival on-track. It's besides known arsenic nan overtake button, for that reason.
The K2 button, however, is not utilized to supply an advantage successful close-combat conditions, but alternatively astatine defining moments passim a race. Common uses see nan title start, nan thigh earlier aliases aft a pit stop, and restarts aft a Safety Car. These are nan moments wherever thigh clip is astir critical, and nan car needs its afloat capacity to either build a spread aliases support way position.
Better knowing nan K1 and K2 buttons successful an F1 car

Jay Hirano/Shutterstock
The K1 fastener isn't nan only overtaking instrumentality a driver has astatine their disposal during a race, arsenic nan steering instrumentality is besides equipped pinch a DRS — aliases Drag Reduction System — button. This does precisely what it says, reducing resistance by opening up nan rear wing. This allows an F1 car to execute a higher apical speed, aiding an overtake. However, dissimilar nan K1 button, which tin beryllium utilized astatine immoderate infinitesimal of nan title — connected a consecutive for amended apical speed, aliases during a area for amended acceleration retired of it — nan DRS fastener tin only beryllium utilized connected definite parts of nan track, erstwhile wrong a 2nd of nan car in-front.
Given that some nan K1 and K2 buttons springiness drivers other power, you'd beryllium forgiven for assuming that drivers walk nan full title mashing these buttons for changeless doses of other grunt. However, nan hybrid strategy needs clip to recharge, truthful they're utilized sparingly. Also, putting other powerfulness done an F1 car's drivetrain puts other accent connected various components, including nan engine, shortening their lifespan. This is why nan buttons are only utilized astatine captious moments of nan race, arsenic nan squad must measurement nan use of gaining aliases keeping an on-track position against putting other deterioration connected nan hugely complex, costly engine.