hmmm i think it's possible to change engine on the ship but useful i doubt it....
And what exactly do you want for thrusters ??? we already got like 10 thruster models with different stats..... if it's still a color issue, well we wont spend hours to change colors of your thrusters....
Attention: Irony
perhaps we should add options like in Need For Speed Underground series : Carbon cargo doors, hull neons, chromed guns, hot chicks on the ship wings......