Equus (genus) 54 million years ago (Mya). These animals had three toes on the hind feet and four on the front feet with small hooves in place of claws, but also had soft pads.<ref name="doi10.1126/science.1105458"></ref> Equids developed into larger, three-toed animals (e.g. "Mesohippus") during the Oligocene and Miocene. From there, the side toes became progressively smaller through the Pleistocene until the emergence of the single-toed "Equus". The genus "Equus", which includes all extant equines, is believed to have evolved from "Dinohippus", via the intermediate form "Plesippus". One of the oldest species is "Equus simplicidens", described as zebra-like with a donkey-like head shape.
Hyundai Equus support and a massage system. Hyundai also developed an armoured vehicle based on the limousine, with an enlarged 5.5L version of the V8 engine. On September 2009, Hyundai delivered three bulletproof limousine versions of the luxury sedan Equus to the South Korea Presidential Security Service to be used as the official state car. Hyundai designed this vehicle with a special alloy, with an automatic cooling system in case of fire as well as bulletproof windows. The first-built armoured limousine was donated to Blue House. A modified Hyundai Equus was donated to Costa Rica and is currently used as the presidential