Liquidmetal does have high strength, but its density is not low (~ 6.1 &[ignore]middot[/ignore]; 103 kg m-3). Also, its elastic modulus is low (~ 90 GPa). Therefore, it is not competitive for designs requiring high stiffness, which includes wheels.
Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.