Mercedosaurus Rex at Indianapolic Park
Appendix 2: Car and driver appearances and performances during the Month of May 1994
Author
- Henri Greuter
Date
- December 4, 2009
Related articles
- March-Alfa Romeo 90CA - Fiasco Italo-Brittanico, by Henri Greuter
- March-Porsche 90P - The last oddball at the Indianapolis Motor Speedway, by Henri Greuter
- Penske-Mercedes PC23-500I - Mercedosaurus Rex at Indianapolic Park, by Henri Greuter
- Introduction
- Part 1: Penske Racing at Indianapolis - new standards
- Part 2: Ilmor Engineering at Indianapolis
- Part 3: Mercedes, Benz and Mercedes-Benz at Indianapolis up until 1993
- Part 4: Equivalency formulas - waiting for things to go wrong
- Part 5: Stock blocks - keeping them rolling and promoting 'Born in the USA' technology
- Part 6: Indianapolis 1991 - Chevy And Rich Team owners
- Part 7: The Speedway narrowed, its speeds lowered
- Part 8: The forerunner
- Part 9: Pre-May '94 plans
- Part 10: Penske PC23 - a home for the engine
- Part 11: The 1994 Indycar season until mid-April
- Part 12: The unfair advantage and when others have it
- Part 13: Practice during the 1994 'Month of May'
- Part 14: Other bespoke-design 209s
- Part 15: From the last weekend of May '94 to the end of the season
- Part 16: Could the Mercedes Benz 500I have been stopped in time?
- Part 17: Creating an extinct species without it being forbidden, initially at least
- Part 18: The 1995 '500' - The Mercedosaurus bites its masters after all
- Part 19: A possible twist of fate for Rahal-Hogan and Penske as a legacy of the 500I
- Part 20: Re-evaluation of our verdict
- Part 21: PC23's further active career after 1994
- Part 22: USAC’s points of views and some answers
- Part 23: The loose ends that didn’t fit in anywhere else and the epilogue
- Appendix 1: Specifications
- Appendix 3: Chassis, entry, practice and race numbers in 1994
- Appendix 4: PC23's 1994 results sans Mercedes Benz 500I
- Appendix 5: PC23's 1995-'96 results sans Mercedes Benz 500I
These stats were primarily derived by use of the 'Performance History' data sheets as released daily and kept up-to-date during the month of May. When sheets were not available, the booklet version of these daily reports, the 1994 Indianapolis 500 Daily Trackside reports, was used to supply the missing data of fastest lap and laps driven.
Days for which the booklet was used are indicated with a single *
Within this overview it is assumed that all USAC registration numbers as assigned to the cars have been retained over the month.
| Day results | Month results | ||||||
| Date | Rank | Car | Driver | Laps | Speed | Laps | Speed |
| May 8 | 9 | 3 | Tracy | 42 | 220.103 | 42 | 220.103 |
| 18 | 2 | Fittipaldi | 24 | 217.918 | 24 | 217.918 | |
| 20 | 31 | Tracy | 10 | 217.244 | 10 | 217.244 | |
| 29 | 3T | Tracy | 19 | 212.691 | 19 | 212.691 | |
| May 9 | 2 | 2 | Fittipaldi | 76 | 226.512 | 100 | 226.512 |
| 9 | 31 | Unser Jr | 44 | 223.897 | 44 | 223.897 | |
| 11 | 3 | Tracy | 25 | 221.899 | 67 | 221.899 | |
| 26 | 3T | Tracy | 13 | 216.925 | 32 | 216.925 | |
| May 10 | 2 | 3 | Tracy | 65 | 229.961 | 132 | 229.961 |
| 3 | 2 | Fittipaldi | 58 | 229.264 | 158 | 229.264 | |
| 11 | 31 | Unser Jr | 45 | 226.085 | 89 | 226.085 | |
| 30 | 31T | Unser Jr | 13 | 217.544 | 13 | 217.544 | |
| May 11* | 1 | 31 | Unser Jr | 57 | 226.478 | 146 | 226.478 |
| 5 | 3 | Tracy | 29 | 224.433 | 132 | 229.961 | |
| 6 | 31T | Fittipaldi | 20 | 224.422 | 20 | 224.422 | |
| 7 | 2 | Fittipaldi | 12 | 223.403 | 158 | 229.264 | |
| May 12 | 1 | 2 | Fittipaldi | 95 | 230.438 | 265 | 230.438 |
| 2 | 3 | Tracy | 54 | 229.961 | 215 | 229.961 | |
| 4 | 31 | Unser Jr | 48 | 227.457 | 194 | 227.457 | |
| May 13 | 1 | 2 | Fittipaldi | 68 | 230.138 | 333 | 230.438 |
| 3 | 3 | Tracy | 52 | 228.693 | 267 | 229.961 | |
| 9 | 31 | Unser Jr | 47 | 227.359 | 241 | 227.457 | |
| 41 | 31T | Unser Jr | 12 | 220.543 | 25 | 220.535 | |
| May 14* | 1 | 31 | Unser Jr | 23 | 229.481Q | 264 | 229.481 |
| 2 | 2 | Fittipaldi | 14 | 229.043 | 347 | 230.438 | |
| May 15* | 1 | 2 | Fittipaldi | 30 | 228.224 | 377 | 230.438 |
| 227.987Q** | |||||||
| 3 | 3T | Unser Jr | 22 | 226.324 | 22 | 226.324 | |
| 8 | 31T | Tracy | 31 | 224.159 | 31 | 224.159 | |
| 223.081Q** | |||||||
| May 16 | 1 | 3T | Fittipaldi | 86 | 226.421 | 86 | 226.421 |
| May 17 | 1 | 3T | Fittipaldi | 92 | 228.717 | 178 | 228.717 |
| 3 | 2T | Tracy | 36 | 225.135 | 36 | 225.135 | |
| 5 | 2T | Fittipaldi | 5 | 224.025 | 5 | 224.025 | |
| May 18 | 1 | 3T | Fittipaldi | 97 | 229.510 | 275 | 229.510 |
| 2 | 2T | Unser Jr | 107 | 224.944 | 197 | 224.944 | |
| May 19 | 1 | 3T | Fittipaldi | 62 | 228.305 | 337 | 229.510 |
| 2 | 2T | Unser Jr | 101 | 225.694 | 208 | 225.694 | |
| 3 | 2T | Tracy | 25 | 225.017 | 61 | 225.135 | |
| May 20 | 3 | 2T | Unser Jr | 52 | 225.028 | 260 | 225.694 |
| 4 | 3T | Tracy | 75 | 225.017 | 107 | 225.017 | |
| 15 | 3T | Unser Jr | 21 | 220.173 | 43 | 226.324 | |
| May 21 | 3 | 31T | Tracy | 26 | 226.057 | 57 | 226.057 |
| 4 | 2 | Fittipaldi | 23 | 225.034 | 400 | 230.438 | |
| 8 | 3T | Fittipaldi | 59 | 223.043 | 396 | 229.510 | |
| 19 | 2T | Unser Jr | 19 | 219.820 | 279 | 225.694 | |
| 22 | 2T | Tracy | 19 | 217.981 | 80 | 225.135 | |
| 23 | 31 | Unser Jr | 31 | 217.439 | 295 | 229.481 | |
| May 22* | 10 | 3T | Fittipaldi | 43 | 219.550 | 439 | 229.510 |
| 12 | 3T | Unser Jr | 44 | 218.877 | 87 | 226.324 | |
| May 26 | 3 | 2 | Fittipaldi | 16 | 222.872 | 416 | 230.438 |
| (Carb Day) | 10 | 31T | Tracy | 20 | 218.468 | 77 | 226.057 |
| 12 | 31 | Unser Jr | 21 | 218.050 | 316 | 229.481 | |
| May 29 | 1 | 31 | Unser | 203# | 217.986 | 519 | 229.481 |
| 17 | 2 | Fittipaldi | 187# | 220.680 | 603 | 230.438 | |
| 23 | 31T | Tracy | 95# | 213.680 | 172 | 226.057 | |
* No Performance History datasheet of that day available, 1994 Daily Trackside Reports
booklet used instead
** Fastest lap during qualifying attempt made
# Combined number of laps driven in race plus three warm-up laps
The overview of the amount of laps driven by the three drivers in the available cars excluding the race laps looks as follows:
| Car # | Driver | Days | Laps | Fastest lap |
| 2 | Fittipaldi | 10 | 416 | 230.438 |
| 2T | Fittipaldi | 1 | 5 | 224.025 |
| 2T | Paul Tracy | 3 | 80 | 225.135 |
| 2T | Unser Jr | 4 | 279 | 225.694 |
| 3 | Paul Tracy | 6 | 267 | 229.961 |
| 3T | Fittipaldi | 6 | 439 | 229.510 |
| 3T | Paul Tracy | 3 | 107 | 225.017 |
| 3T | Unser Jr | 3 | 87 | 226.324 |
| 31 | Paul Tracy | 1 | 10 | 217.244 |
| 31 | Unser Jr | 8 | 316 | 229.481 |
| 31T | Fittipaldi | 1 | 20 | 224.422 |
| 31T | Paul Tracy | 3 | 77 | 226.057 |
| 31T | Unser Jr | 2 | 25 | 220.535 |
With six cars and three drivers, a total of 13 different car/driver combinations were active at the Speedway. Curiously, Paul Tracy is the only man who drove a car assigned to one of his team mates, running Unser's 31 on May 8th while Unser was testing at Michigan. All three drivers drove the backup car with their own T-number but also the back-up cars with their team mates' T-numbers.
The amounts of practice laps in total for the individual cars looks as follows:
| Car # | Laps | Fastest lap (driver) |
| 2 | 416 | 230.438 (Fittipaldi) |
| 2T | 364 | 225.694 (Unser Jr) |
| 3 | 367 | 229.961 (Tracy) |
| 3T | 633 | 229.510 (Fittipaldi) |
| 31 | 322 | 229.481 (Unser Jr) |
| 31T | 122 | 226.057 (Tracy) |
The total number of laps driven by all cars was 2128, during which no single 500I engine was lost.
It's a bit curious that Paul Tracy's eventual race car is the one with the least amount of laps of all cars during the first week of practice and only 5th fastest of them all.
As for the number of practice laps driven by the three men, this looks as follows:
| Driver | Laps | Number of cars used |
| Fittipaldi | 880 | 4 |
| Unser Jr | 707 | 4 |
| Tracy | 541 | 5 |
Tracy also drove 10 laps in one of the backup '93 Penske PC22-Ilmor/D cars, meaning that he drove no less than six of the eight cars entered.
The qualifying and race results for the cars and drivers eventually looked as follows:
| Driver | Car | Laps | Fastest lap | Qualifying attempt in practice | Start | Fin | Laps (fastest race lap) |
| Unser Jr | 31 | 322 | 229.481 | 1: 39.872 – 225.722 | 1 (1) | 1 | 200 |
| 2: 39.413 – 228.351 | |||||||
| 3: 39.383 – 228.525 | Led 48 laps | ||||||
| 4: 39.219 – 229.481 | |||||||
| T: 2:37.887 – 228.011 | 217.986 (lap 12) | ||||||
| Fittipaldi | 2 | 416 | 230.438 | 1: 39.476 – 227.987 | 3 (3) | 17 | 184 |
| 2: 39.637 – 227.061 | |||||||
| 3: 39.613 – 227.198 | Led 145 laps | ||||||
| 4: 39.653 – 226.969 | |||||||
| T: 2:38:379 – 227.303 | 220.680 (lap 121) | ||||||
| Tracy | 31T* | 122 | 226.057 | 1: 40.344 – 223.081 | 25 (19) | 23 | 92 |
| 2: 40.493 – 222.261 | |||||||
| 3: 40.354 – 223.026 | |||||||
| 4: 40.454 – 222.475 | |||||||
| T: 2:41:645 – 222.710 | 213.680 (lap 13) | ||||||
Finally, the most important results in one single overview:
| Driver | Chassis # | Engine # | Race # | Qual Pos (ranking) | Finish | Laps | Led | Fastest lap |
| Unser Jr. | PC23-007 | 131 | 31 | 1 (1) | 1 | 200 | 48 | 217.986 |
| Fittipaldi | PC23-003 | 058 | 2 | 3 (3) | 17 | 184 | 145 | 220.680 |
| Tracy | PC23-001?* | 049 | 3 | 25 (19) | 23 | 92 | - | 213.680 |
Sources: Carl Hungness Indianapolis 500 1994 Yearbook, Indy Review Volume 4 and Prime Movers by Karl Ludvigsen
* Personal correspondence with a friend who had been in touch with the late Bob Laycock of the Indianapolis Motor Speedway Media Center about the 1994 starting field learned that according to Laycock's legendary data files Tracy's car was PC23-06. Maybe the original, wrecked #3 and the car entered as #31T which Tracy eventually qualified and was renumbered #3 for race day got mixed up.
According to the Autocourse Indycar Official Yearbook 1994-1995, the Penske team had a designated test chassis built for the Mercedes Benz 500I: PC23-004. Four other cars, already used in the season in races preceding Indianapolis were rebuilt with the 500I engine while a new chassis, 007, was added to the five existing cars to provide each driver with a primary and a backup car.
