| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | Ford Mustang (fourth generation) - Engine output summary |  |  |  |  |
| 3 | Year | Base Model | GT | Cobra | Special Edition |
| 4 | 1994 | 145 hp (108 kW) @ 4000 rpm 215 ft·lbf (291 N·m) of torque @ 2500 rpm | 215 hp (160 kW) @ 4200 rpm 285 ft·lbf (386 N·m) of torque @ 3400 rpm | 240 hp (179 kW) @ 4800 rpm | - |
| 5 | 1995 | 145 hp (108 kW) @ 4000 rpm 215 ft·lbf (291 N·m) of torque @ 2500 rpm | 215 hp (160 kW) @ 4200 rpm 285 ft·lbf (386 N·m) of torque @ 3500 rpm | 240 hp (179 kW) | 300 hp (Cobra R) |
| 6 | 1996 | 150 hp (108 kW) @ 4000 rpm 215 ft·lbf (291 N·m) of torque @ 2500 rpm | 215 hp (160 kW) @ 4400 rpm 285 ft·lbf (386 N·m) of torque @ 3500 rpm | 305 hp (227 kW) @ 5800 rpm 300 ft·lbf (406 N·m) of torque @ 4800 rpm | - |
| 7 | 1997 | 150 hp (108 kW) @ 4000 rpm 215 ft·lbf (291 N·m) of torque @ 2500 rpm | 215 hp (160 kW) @ 4400 rpm 285 ft·lbf (386 N·m) of torque @ 3500 rpm | 305 hp (227 kW) @ 5800 rpm 300 ft·lbf (406 N·m) of torque @ 4800 rpm | - |
| 8 | 1998 | 150 hp (108 kW) @ 4000 rpm 215 ft·lbf (291 N·m) of torque @ 2500 rpm | 225 hp (168 kW) @ 4750 rpm 290 ft·lbf (393 N·m) of torque @ 3500 rpm | 305 hp (227 kW) @ 5800 rpm 300 ft·lbf (406 N·m) of torque @ 4800 rpm | - |
| 9 | 1999 | 190 hp (142 kW) @ 5250 rpm 220 ft·lbf (298 N·m) of torque @ 2750 rpm | 260 hp (194 kW) @ 5250 rpm 302 ft·lbf (409 N·m) of torque @ 4000 rpm | 320 hp (239 kW) @ 6000 rpm 317 ft·lbf (429 N·m) of torque @ 4750 rpm | - |
| 10 | 2000 | 190 hp (142 kW) @ 5250 rpm 220 ft·lbf (298 N·m) of torque @ 2750 rpm | 260 hp (194 kW) @ 5250 rpm 302 ft·lbf (409 N·m) of torque @ 4000 rpm | - | 385 hp (Cobra R) |
| 11 | 2001 | 193 hp (144 kW) @ 5500 rpm 225 ft·lbf (305 N·m) of torque @ 2800 rpm | 260 hp (194 kW) @ 5250 rpm 302 ft·lbf (409 N·m) of torque @ 4000 rpm | 320 hp (239 kW) @ 6000 rpm 317 ft·lbf (429 N·m) of torque @ 4750 rpm | 265 hp (198 kW) (Bullitt) |
| 12 | 2002 | 193 hp (144 kW) @ 5500 rpm 225 ft·lbf (305 N·m) of torque @ 2800 rpm | 260 hp (194 kW) @ 5250 rpm 302 ft·lbf (409 N·m) of torque @ 4000 rpm | - | - |
| 13 | 2003 | 193 hp (144 kW) @ 5500 rpm 225 ft·lbf (305 N·m) of torque @ 2800 rpm | 260 hp (194 kW) @ 5250 rpm 302 ft·lbf (409 N·m) of torque @ 4000 rpm | 390 hp (291 kW) † 390 ft·lbf (529 N·m) of torque | 305 hp (227 kW) (Mach I) |
| 14 | 2004 | 193 hp (144 kW) @ 5500 rpm 225 ft·lbf (305 N·m) of torque @ 2800 rpm | 260 hp (194 kW) @ 5250 rpm 302 ft·lbf (409 N·m) of torque @ 4000 rpm | 390 hp (291 kW) † 390 ft·lbf (529 N·m) of torque | 305 hp (227 kW) (Mach I) |

Question: Which engine models improved performance from 1997 to 1998?
Answer: From 1997 to 1998, the GT model engine improved from 215 to 225 hp.