I took my Honda CRZ Hybrid, ripped the oversized battery out and dropped a k24A2 with a 2011 Civic SI LSD trans. Needless to say the car is a lot better now :
New Hybrid Battery to suit Honda Insight Hybrid CR-Z (2010-2012) – Infinitev
2013-2016 Honda CR-Z CRZ IMA Hybrid Battery CELLS lithium ion battery | eBay
2013 Honda CR-Z hybrid gets power boost: New lithium-ion battery pack includes PlusSport button
2013 Honda CR-Z EX for Sale - Cars & Bids
From cute hybrid to hot hatch: Trackside with the HPD supercharged Honda CR- Z - CNET
Honda CR-Z - Check For These Issues Before Buying - YouTube
Honda CR-Z (2011) long-term test review | CAR Magazine
2014 Honda CR-Z - The Sporty Hybrid - The Car Guide