The SiR takes the Civic Coupe Si as its foundation but elevates performance to new heights with ... Securing an unexpected position at number 3 on our list is the 2007-2012 Acura RDX, housing the ...
It made use of VTC mainly for performance purposes in engines like the K20A2 and K20Z3 in the Acura RSX Type S and Honda Civic Si. VCM was also used in engines like the K20A3 and K24A4 in the Civic Si ...