| “ | Race the exotic "Plastic Porsche" that weighs in at an astonishingly light 375 kg (826.7 lbs). | ” |
— In-game description.
| ||
Mountain Spider is a bonus series part of the GT3 World Series career series, located in the Master category and was added in Euro Masters Update (v6.6).
Throughout the series, players can earn up to 
90,000 by unlocking tiers, as well as 67,000 and 67 
in bonuses upon reaching 100% completion in the series. Players must earn 27 trophies in GT3 World Series or by 100% completing the Porsche 909 Bergspyder Championship LTS in order to participate in this series.
Tier 5.2 and 25% completion can be reached without upgrades.
Cars
| Brand | Name | PR | Top Speed | Acc. | Braking | Grip | Cost |
|---|---|---|---|---|---|---|---|
| 909 BERGSPYDER | 50.3 | 155 mph 239 kph | 2.40 s | 96.0 ft 29.2 m | 1.04 g | 400
|
Events
| Index | Tier | Event | Location | Laps /PR | R$ (+CRB) | Fame |
|---|---|---|---|---|---|---|
| 1.1 | TIER 1 |  Hunter
| Nürburgring Grand Prix Circuit | 1 — | 2,700 (+675) | 500 |
| 1.2 | TIER 1 |  Autocross
| Formula E Hong Kong Circuit | — — | 1,200 | 300 |
| 1.3 | TIER 1 |  Cup
| Silverstone The National Circuit | 1 — | 1,200 (+300) | 300 |
| 2.1 | TIER 2 |  Elimination
| Dubai Autodrome Hill Circuit | Differs — | 3,000 (+750) | 600 |
| 2.2 | TIER 2 |  Head To Head
| Indianapolis Motor Speedway (Morning) Road Course | 1 — | 2,000 (+500) | 400 |
| 2.3 | TIER 2 | Cup
| Circuit de Catalunya Club Circuit | 2 52.7 | 2,000 (+500) | 400 |
| 3.1 | TIER 3 |  Speed Snap
| Formula E New York Circuit | — — | 800 | 200 |
| 3.2 | TIER 3 |  Speed Record
| Melbourne | 1 — | 1,500 (+375) | 300 |
| 3.3 | TIER 3 | Cup
| Red Bull Ring Grand Prix Circuit | 1 53.8 | 2,200 (+550) | 400 |
| 4.1 | PORSCHE 909 BERGSPYDER Time Trial |  Time Trial
| Circuit de Spa-Francorchamps | 1 — | 2,440 | 500 |
| 5.1 | TIER 5 |  Drag Race
| Autodromo Nazionale Monza (Morning) Road Course | — — | 1,100 | 200 |
| 5.2 | TIER 5 |  Endurance
| Brands Hatch Indy Circuit | Differs — | 1,100/lap (+275/lap) | 200/lap |
| 5.3 | TIER 5 | Cup
| Mazda Raceway Laguna Seca | 1 54.8 | 2,100 (+525) | 400 |
| 6.1 | TIER 6 | Elimination
| Porsche Test Track Dynamic Circuit | Differs — | 3,200 (+800) | 600 |
| 6.2 | TIER 6 | Head To Head
| Daytona International Speedway Motorcycle Course Rolling Start | 1 — | 2,200 (+550) | 400 |
| 6.3 | TIER 6 | Cup
| Circuit des 24 Heures | 1 55.6 | 5,800 (+1,450) | 1,100 |
| 7.1 | TIER 7 | Speed Snap
| Suzuka Circuit East Circuit | — — | 900 | 200 |
| 7.2 | TIER 7 | Drag Race
| Indianapolis Motor Speedway Road Course | — — | 1,200 | 200 |
| 7.3 | TIER 7 | Cup
| Red Bull Ring Afternoon Südschleife National Circuit | 3 57.7 | 3,800 (+950) | 700 |
| 8.1 | PORSCHE 909 BERGSPYDER Time Trial | Time Trial
| Mazda Raceway Laguna Seca | 1 — | 1,600 | 290 |
| 9.1 | TIER 9 | Head To Head
| Circuit des 24 Heures (Evening) | 1 — | 6,200 (+1,550) | 1,200 |
| 9.2 | TIER 9 | Autocross
| Mount Panorama (Morning) | — — | 1,400 | 300 |
| 9.3 | TIER 9 | Cup
| Nürburgring Müllenbachschleife | 6 59.7 | 6,100 (+1,525) | 1,200 |
| 10.1 | TIER 10 | Speed Record
| Hockenheimring Short | 1 — | 1,700 (+425) | 300 |
| 10.2 | TIER 10 | Endurance
| Circuit de Catalunya National Circuit | Differs — | 1,900/lap (+475/lap) | 400/lap |
| 10.3 | TIER 10 | Cup
| Suzuka Circuit Grand Prix Circuit | 2 60.3 | 6,400 (+1,600) | 1,200 |
| 11.1 | TIER 11 | Speed Snap
| Circuit de Spa-Francorchamps | — — | 900 | 200 |
| 11.2 | TIER 11 | Head To Head
| Mazda Raceway Laguna Seca | 1 — | 2,300 (+575) | 500 |
| 11.3 | TIER 11 | Cup
| Melbourne | 4 60.3 | 6,800 (+1,700) | 1,300 |
| 12.1 | PORSCHE 909 BERGSPYDER Time Trial | Time Trial
| Formula E New York Circuit | 1 — | 1,280 | 290 |
| 13.1 | TIER 13 | Autocross
| Brands Hatch Indy Circuit | — — | 1,500 | 300 |
| 13.2 | TIER 13 | Speed Record
| Nürburgring Sprint Circuit | 1 — | 2,400 (+600) | 500 |
| 13.3 | TIER 13 | Cup
| Hockenheimring National | 3 62.2 | 7,100 (+1,775) | 1,300 |
| 14.1 | TIER 14 | Hunter
| Autodromo Nazionale Monza Junior Course | 1 — | 1,300 (+325) | 300 |
| 14.2 | TIER 14 | Speed Snap
| Dubai Autodrome Club Circuit | — — | 900 | 200 |
| 14.3 | TIER 14 | Cup
| Circuit de Catalunya GP Circuit | 3 62.8 | 8,800 (+2,200) | 1,600 |
| 15.1 | TIER 15 | Head To Head
| Silverstone The International Circuit | 1 — | 1,800 (+450) | 400 |
| 15.2 | TIER 15 | Elimination
| Porsche Test Track On-road Circuit (Short) | Differs — | 3,600 (+900) | 700 |
| 15.3 | TIER 15 | Cup
| Daytona International Speedway (Evening) Road Course Rolling Start | 2 63.5 | 6,400 (+1,600) | 1,200 |
| 16.1 | TIER 16 | Endurance
| Red Bull Ring Morning Südschleife National Circuit | Differs — | 1,500/lap (+375/lap) | 300/lap |
| 16.2 | TIER 16 | Autocross
| Suzuka Circuit West Circuit | — — | 1,500 | 300 |
| 16.3 | TIER 16 | Cup
| Indianapolis Motor Speedway Road Course | 3 64.1 | 7,200 (+1,800) | 1,400 |
| 17.1 | TIER 17 | Hunter
| Circuit de Spa-Francorchamps | 1 — | 4,100 (+1,025) | 800 |
| 17.2 | TIER 17 | Head To Head
| Mount Panorama | 1 — | 3,500 (+875) | 700 |
| 17.3 | TIER 17 | Cup
| Brands Hatch Indy Circuit | 7 64.8 | 8,600 (+2,150) | 1,600 |
| 18.1 | TIER 18 | Speed Snap
| Formula E Hong Kong Circuit | — — | 1,000 | 200 |
| 18.2 | TIER 18 | Elimination
| Dubai Autodrome Grand Prix Circuit | Differs — | 3,700 (+925) | 700 |
| 18.3 | TIER 18 | Cup
| Autodromo Nazionale Monza Road Course | 3 65.1 | 9,500 (+2,375) | 1,800 |
