I know of one that went bad at 170,000 miles. Honda charged $3500 for replacement. Inside it's just about $500 worth of (high quality?) rechargable D cells. They keep the old one! There's something about the older IMA/BCM controllers that lets the batteries overcharge, heat up for shorter than expected lives.
Honda Insight was created in 1999.
The 2012 Honda Insight has 8 valves.
The 2005 Honda Insight has 12 valves.
The 2010 Honda Insight has 8 valves.
The 2011 Honda Insight has 8 valves.
The 2014 Honda Insight has 8 valves.
The 2004 Honda Insight has 12 valves.
The 2006 Honda Insight has 12 valves.
The 2013 Honda Insight has 8 valves.
The 2003 Honda Insight has 12 valves.
The 2002 Honda Insight has 12 valves.
The 2001 Honda Insight has 12 valves.