Evilution - Smart Car Encyclopaedia Evilution, the smart car encyclopaedia, full of information for fixing and modifying your smart car. Evilution - Smart Car Encyclopaedia Evilution, the smart car encyclopaedia, full of information for fixing and modifying your smart car. drivers side of a LHD smart city coupe/cabrio and the drivers side of a Roadster. What Does It Look Like? Damn right, Relays. Most cars have relays in the fuse box, these control the horn, wipers, indicators, lights etc. The relays