You haven't mentioned whether you are going for GLI Manual or GLI Auto, nevertheless, following is the cost break up for both variants:
LAHORE
GLI Manual
Base Price: 17,64,000
WHT (Non-Filer): 40,000
Freight and Insurance: 20,000
Total: 18,24,000
GLI Auto
Base Price: 18,39,000
WHT (Non-Filer): 40,000
Freight and Insurance: 20,000
Total: 18,99,000
Add three thousand rupees extra for freight and insurance in case of delivery from ISLAMABAD.