Now Breaking - 2019 Nissan Leaf N-Connecta EM57 40KWH 147.5bhp Now Breaking is this 2019 Nissan Leaf 40kwh All Parts removed ready for Dispatch. Engine Code: EM57. Vehicle/Model: NISSAN Leaf Acenta. Nissan Specialist 1st (Nis- Spec 1st) is one of the UK'sleading Nissan parts specialists.