I've driven the I-Pace and while it is a good car there are 3 main reasons I choose the model 3:
- The fact that it doesn't support 3 phase charging is a BIG mistake. In the UK you might have 1phase 80+ amps, in the rest of europe we usually get 32amps (3 phase). It's a big mistake of jaguar engineers. I've heard they admitted this and the next edition will support 3phase charging.
- Range is very disappointing. (in real life, not on paper)
- Electronics / gadgets are just so much better on tesla model 3.
I agree about the 3 phase charging and that would have made me think twice.
The efficiency would be slightly better than a model X in day to day use. Tesla Bjorn did a range test with Model X, I-Pace and the E-Tron. The results were that the E-Tron was last, the I-Pace was best on "A" roads and the Model X was best on motorways. He actually cheated to let the Model X win by the smallest of margins. (he makes a taxable pay from Tesla). If the test had gone the full intended route then the I-Pace would have won.
The Model S and Model 3 are lower cars and give a better range if that's high on your criteria list.
I believe you should get the EV that fits your situation best and the answer isn't the same for everyone. I was a 1st-day reservation holder for a Model 3 but that hasn't appeared in the UK yet and has no firm date (over 3 years down the line).
When I saw the I-pace in the flesh, that Tesla deposit was placed on the I-Pace and I have no regrets. If I had gone with the Model 3, or any Tesla then I would have gone backward in build and interior quality.
It's the green car of the year but for some strange reasons the Model 3 was not even in the running. Looking at the scores I kind of think these cars were just competing for the runner up. The Model 3 would blow everyone away in pretty much EVERY category on the score board.
2019 World Car Awards - Results :: World Car Awards
Unfortunately the I-Pace would have been a pretty attractive car without the Tesla. On the other hand we would never see cars like I-Pace if there were no Tesla.
Maybe the green car isn't just about efficiency. The I-Pace is a fantastic car and most on the I-Pace forum love their cars (coming from Porsche, Tesla, Merc, Audi etc). There are some teething issues (mostly software) that some have had but very small issues.
Tesla, Nissan and BMW have all pushed the cause. I believe the I-Pace and E-Tron are next level for a lot of buyers, especially in Europe.
I am a big Tesla fan but the reality is my local dealer is around 140 miles away. Jaguar is 30 miles. I would never really need to use the "current" Supercharger network and the I-Pace is better value (in the UK) for what you are getting IMO.