Let's face it, most people aren't buying diesel cars because they want a road burner, they want a vehicle they can put $10 worth of fuel in and drive to Venezuela. They have a load of instant torque, which gives them decent pep, but they don't feel anything like a gas powered car does from an acceleration perspective. The suspensions are set pretty mushy, the cars are generally meant to be basic grocery getters and efficient highway cruisers, so ride quality took priority over crisp handling. That said, they do have some interesting possibilities for fun, there are a few diesel golf road race cars in europe and quite a few people here are starting to play with them.
Drag racing is for fast cars. Solo 2 is for fast drivers.