Assertion: experimental engine | /r/HasProperty | built
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Source sentences:
text: An experimental engine was built based on L92 engine from Cadillac Escalade, GMC Yukon Denali and Hummer H2, and reported to generate 450 bhp (336 kW) on gasoline via direct fuel injection, increased compression ratio to 11.5:1, and a modified engine controller.
text: Experimental engines with laser ignition have been built.