the battery is in the boot
Hybrid rockets use a hybrid fuel-oxidizer system, usually a solid fuel with a liquid oxidizer. This allows simpler construction and higher reliability (like solid fuel rockets) but retains the ability to throttle the engine on demand or even turn it off and restart it (like liquid fuel rockets).
The 2012 Chevrolet Tahoe-Hybrid has a V8 engine.
The 2010 Toyota Highlander-Hybrid has a V6 engine.
The 2013 Toyota Highlander-Hybrid has a V6 engine.
The 2009 Cadillac Escalade-Hybrid has a V8 engine.
The 2012 GMC Yukon-Hybrid has a V8 engine.
The 2008 GMC Yukon-Hybrid has a V8 engine.
The 2008 Chevrolet Tahoe-Hybrid has a V8 engine.
The 2014 Toyota Highlander-Hybrid has a V6 engine.
The 2010 GMC Yukon-Hybrid has a V8 engine.
The 2011 Toyota Highlander-Hybrid has a V6 engine.