tk tk sound might be from the excel,or the boot of excel is broken and excel is running a bit dry.check and confirm it.There are 2 kinds of noise which r felt in this model.
1 - road noise,it's because of suspension design and cannot be eliminated but can be reduced by using soft springs however, handling on corners and high speeds will suffer.
2 - Engine noise,this can be due to hard or broken engine mounts,due to which vibrations along with sound is transferred to car's body and felt in cabin.If not,then u can put underlay along to firewall to reduce them.