I have seen plenty of threads discussing the best car of all time, the best driver of all time, the best driver who has never won a WDC. How about which is the best car to have never won a WDC?
As I am mostly ignorant about Formula 1 pre-2000, I'll only judge the best non-WDC winning cars of this century.
These are the five cars in the poll, which I believe, are the five best candidates for "best non-WDC winning car of the century"
1. The 2000 McLaren MP4/15
The car had stunning speed in virtually all conditions; it was fast in the dry, fast in the wet, fast on any type of circuit, fast over one lap and fast in the race. The only weakness of the car however, was that it was unreliable, especially early on in the season, which allowed Ferrari to ultimately clinch the WDC in the penultimate race. The MP4/15 finished runner-up in both championships and won 7 races.
2. The 2005 McLaren MP4/20
This car's pace was even more impressive than the McLaren of 5 years earlier. The MP4/20 started off slow, but once they got going in Imola, on raw pace they were virtually unstoppable until the end of the season. The biggest downfall of this car however, was its absolutely horrific reliability. They lost the WDC to Renault with 2 races to spare, which is a downfall for a car which had so much potential and won 10 races, the most races any car has ever won without winning the championship.
3. The 2006 Ferrari F248
The car started off slowly with tyre and reliability problems early on in the year. An upgrade for the European season put in almost on par with the Renault R26. After the mass damper was banned, Ferrari were virtually unstoppable. They won 7 out of the last 9 races beginning in Indianapolis. The championship was lost to Renault because of two main reasons, those being Schumacher’s mistakes early on in the season, and reliability misfortunes at the end of the year during the most crucial races of the season.
4. The 2007 McLaren MP4/22
This car was the full package, it’s speed was on par with Ferrari, and the car was more reliable throughout the season. McLaren excelled in cold/wet conditions and mechanical grip circuits, but generally trailed Ferrari in hot conditions and downforce circuits. However, the team was involved in a Spygate scandal, and some very poor operational work from the McLaren pit wall in the final two races of the season caused the WDC to slip through their fingers. The MP4/22 is the only car on this list which ended up being disqualified from the WCC, but still won 8 races and scored more points than Ferrari.
5. The 2008 Ferrari F2008
Ferrari were heavy favorites heading into 2008, and while the pace of the car in dry conditions certainly did not fail to deliver, a multitude of other things did. The F2008 was almost always the car to beat when the sun shined, it however struggled a lot to heat the tyres in wet conditions. Likewise the car’s reliability, although not woeful, was certainly not perfect. The main reason behind them losing the WDC to McLaren was because of a poor operational team, and many driver errors from both of their drivers. Overall, the F2008 finished the year with 8 wins, and is the only car on this list who salvaged the constructor’s championship.
6. The 2012 McLaren MP4/27
Straight out of the box in Melbourne, the MP4/27 was the car to beat. Mid-season they struggled a bit with the unpredictable Pirelli tyres, but once Pirelli became more conservative Germany-onward McLaren were either fastest or equal fastest in all of the remaining races, apart from the infamous Asia leg (Japan, Korea, India) where they struggled with problems on the car and lagged behind Red Bull. Overall the MP4/27 was the fastest car throughout the majority of the season and won 7 races, but they managed to throw away the championship with absolutely abysmal operational work from McLaren along with very unpredictable reliability. Overall, they even finished behind Ferrari in the standings despite winning more than double the races.
Finally, these are the honorable mentions which did not quite make the final cut:
1. 2003 Williams FW25
2. 2009 Red Bull RB5
3. 2010 Ferrari F10
4. 2010 McLaren MP4/25
5. 2003 McLaren MP4/17D
(That's is how I’d rank them, from best to worst)