In terms of aerodynamics, a blunt nose isn't actually that bad - the real drag is caused by flow separation at the rear of the vehicle. It's far more important to have a gently tapered tail, to avoid a stagnant low pressure zone forming.
Think a typical "teardrop" airfoil shape, they are blunt at the front and gently taper off at the rear.
In fact most cars are more aerodynamic in reverse than they are going forwards for exactly this reason - on most cars the front end comes in more gradually (the hood portion comes in first, then enlarges to the passenger section) whereas the rear end is usually much blunter (to maximize storage space).
Think a typical "teardrop" airfoil shape, they are blunt at the front and gently taper off at the rear.
In fact most cars are more aerodynamic in reverse than they are going forwards for exactly this reason - on most cars the front end comes in more gradually (the hood portion comes in first, then enlarges to the passenger section) whereas the rear end is usually much blunter (to maximize storage space).